Power cuts and load shedding are common occurrences everywhere in India. The big metropolitan cities like Mumbai and Delhi might not witness these instances frequently, but you cannot say the same about the other cities, towns, and villages.

The power failures range between two and four hours daily in the cities to even more than eight to ten hours in the villages. Under such circumstances, it becomes inevitable for us to have alternate power back up systems ready.

The Solutions

The first solution that comes to mind is the home Inverter.

The Uninterrupted Power Supply unit or the UPS is also a common solution. We shall look at the subtle differences between these two devices at a later stage in this article.

There are other options like installing a diesel generator or using solar power to provide the necessary backup. In this section, we shall solely concentrate on the home inverter and discuss how to select the right inverter for your home.

We Highly recommend you to read the Inverter Buying Guide at the end of the article to get in-depth knowledge about all the latest Inverter technologies.

Best Inverter With Battery in India

1. Luminous Zelio 1100 plus RC 18000 150 Ah Tubular Battery + Trolley

Luminous is a household name in India as far as inverters are concerned. Its features make it one of the ideal inverters for Indian homes.

  • Sine Wave inverter
  • 900 VA Capacity
  • RC 18000 150Ah Tubular battery included
  • 32-bit processor
  • LED display
  • MCB protection
  • Bypass switch available
  • Comes with sturdy trolley

This Luminous Zelio 1100 inverter is a sine wave inverter with a rated power capacity of 756 watts.

Hence, it is an ideal appliance to power up to three ceiling fans, an LED TV, and three tube lights. Thus, it should satisfy the requirements of a standard Indian household.

This inverter supports all types of batteries, flat plate, tubular, and VRLA.

However, it comes equipped with a 150Ah tubular battery that can provide power for an average of 12 hours when charged fully. However, it depends on how many appliances you connect to the inverter.

A 32-bit processor powers this inverter. It is an intelligent inverter because its adaptive learning capability helps to charge batteries optimally and calculate charging and backup times. It comes with an LCD panel to indicate these values to the user.

This inverter works in the ECO and UPS mode. The UPS mode is suitable for ensuring the safety of the appliances, as it maintains the output voltage in the range of 160 to 260V.

The ECO mode helps extend battery life. The bypass switch enables the user to switch between these modes quickly.

The Zelio 1100 is one of the safest inverters to use because it comes with protection features like short-circuit, battery deep-discharge, battery over-charge, and reverse polarity. It also comes with an MCB for added protection.

The sturdy trolley supplied along with the unit can withstand the weight of the battery and the inverter. The wheels provided on the cart make it a portable device.

This Luminous Zelio 1100 is one of the best inverters with battery available in India today.

Pros
  • Excellent combination of inverter and battery
  •  Full value for the money you spend
  •  Incredible battery backup
Cons
  • A couple of users have complained of poor customer service.

2. Luminous Zelio 1100 Inverter with RC18000 150 Ah Tubular Battery

Luminous manufactures some of the best inverters in India. This model is the ideal one for Indian households. Let us look at some of the salient features of this appliance.

  • Sine wave technology 900VA
  • Battery 12V
  • Capacity 150 Ah
  • Can power three tube lights, three ceiling fans, and 1 LED TV
  • 32-bit processor
  • Maximum bulb load of 685 Watts

This inverter is a 900VA capacity appliance although the model number indicates 1100. The Luminous Zelio 1000 is a powerful inverter capable of handling your refrigerator load.

Alternatively, you can use your mixer and grinder along with the regular fans and lights. Hence, it suits the requirements of a typical Indian home.

The 32-bit DSP processor makes it a smart inverter. This processor acts as a battery management system that adapts according to the situation thereby ensuring optimum charging. The inbuilt MCB with overload and short circuit protection makes it a safe inverter.

There is also protection available from deep discharge. It gives out an audible warning when the battery voltage reaches low limits.

This inverter comes with a UPS mode that enables it to maintain the output voltage at acceptable levels thereby protecting your valuable electrical appliances. However, the UPS mode consumes more power from the battery. You can overcome this factor by using the Eco mode.

This inverter comes with an RC18000 Tubular battery with capacity 150 Ah. The LCD provides valuable information about the charging times, backup left, and even the water level in the batteries. If there is a fault in the inverter system, the LCD alerts you so that you can bypass the inverter.

This sine wave inverter is a noiseless one and provides low harmonic distortion.

Pros

• Provides high-quality backup
• Sturdy battery to provide the best support
• Ideal for home and office use

Cons
  • Inverter tends to get heated.

3. Luminous Red Charge RC 18000 150Ah Recyclable Tall Tubular Inverter Battery

Nothing can be better than the Luminous inverter battery when it comes to powering your inverters for home and office. This Luminous Red Charge RC 18000 is one of the best heavy-duty inverter batteries available on the market.

  • Tall tubular inverter battery
  • High efficiency
  • 12V Nominal voltage
  • Rated Capacity of 150Ah
  • Battery weight around 26.9 kg when dry and 42.3 Kg when filled

If you are facing power cuts frequently, thereby disrupting your working schedules, the Luminous Red Charge RC 18000 should be the ideal inverter battery to power your home or office inverter.

The advanced tubular plate technology ensures uninterrupted and regulated power to let your connected devices function without any problems during a power cut.

This battery is engineered to provide superior power and higher efficiency while maximising the battery life at the same time. One of the exciting aspects of this inverter battery is that its design is perfectly suited for delivering optimum efficiency, even with heavy-duty applications.

This tubular plate battery requires less maintenance than other batteries in its niche. Besides, this battery is the ideal one for Indian conditions as it is capable of enduring long and frequent power cuts.

The low amount of antimony alloy used in the manufacture of this battery ensures less maintenance. While the robust tubular plates provide long-lasting service, this battery displays excellent overcharge tolerance levels.

This battery proves its worth by allowing you to connect the refrigerator, one LED TV, two tube lights, three fans, and one LED bulb comfortably. Thus, it is the perfect battery to have in places where there are frequent power cuts.

On the durability front, this inverter battery comes with a sealed plastic hosing, thereby ranking as one of the most durable inverter batteries.

Pros
  • Less maintenance while delivering high output
  • Capable of powering sufficient loads to help you tide over frequent power cuts
  • Backed by excellent customer support
Cons
  • A bit on the heavier side
  • No water level indicator given with the battery

4. Luminous Shakti Charge SC 18054 150Ah Tall Tubular Inverter Battery for Home, Office, and Shops

Luminous inverter batteries have a reputation for being one of the sturdiest in the industry. The battery can support a host of electrical devices, thereby proving its worth as an excellent inverter battery for home, office, and shops.

  • Smart, tall tubular inverter battery
  • Six water level indicators
  • Capacity of 150Ah
  • Dry battery weight of 28.6 Kg with a filled-in weight of 51.2 Kg
  • Warranty of 54 months

If you seek a high-performance inverter battery for home, office, or shops, the Luminous Shakti Charge SC 18054 should be the ideal one.

The plus point of this battery is that it comes with the latest innovations that offer longer service life and backup. As it works with thick tubular plates, this inverter battery is capable of providing excellent backup in areas with a history of long and frequent power cuts.

This inverter battery comes equipped with a corrosion-resistant proprietary spine alloy composition having high purity levels to ensure longer service life.

The tubular plate construction design ensures uniform distribution of positive active material, thereby ensuring superior performance and extended lifespan.

Other factors that enhance the battery’s overall lifespan include an extra-strong and flexible oxidation-resistant gauntlet. Besides improving its lifespan, this feature ensures higher performance levels.

Another excellent feature is that the plates are ideally designed for better charge acceptance. The rugged construction allows for rough handling of the battery without disturbing its performance levels in any way.

It features six water level indicators to let you know when it is time to recharge the battery with distilled water. The battery is large enough to accommodate up to 18.2 litres of distilled water. Thus, it has enough power in the tank to provide backup to your home, office, or shop in the event of extended breakdowns.

This inverter battery can handle the electrical load of one refrigerator, one LED 40″ TV, three fans, two tube lights, and one LED. Thus, it is an ideal one for your home.

Pros
  • Provides excellent backup
  • Rugged appearance with a superlative performance
  • People have appreciated their customer service.
Cons
  • One of the more massive inverter batteries in the market

5. Luminous Red Charge RC 25000 200Ah, Recyclable Tall Tubular Inverter Battery

Here is a heavy-duty Luminous inverter battery capable of supporting heavy loads like computer printers, etc. thereby proving to be an ideal inverter battery for office use.

  • Tall tubular inverter battery
  • Six water level indicators
  • Capacity of 200Ah
  • Boost mode for charging
  • High-efficiency
  • Overload protection with auto-reset feature

Bringing home an Inverter battery as highly efficient as Luminous Red Charge RC 25000 is as good as ensuring uninterrupted power supply 24×7.

This Luminous battery comes with an incredible capacity of 200Ah to cater to almost all kinds of electrical equipment. It is suited for every power storage equipment, thereby proving to be one of the perfect batteries to power your home and office inverters.

The advanced tubular plate technology regulates power and ensures uninterrupted power facility to your home or office. The best aspect of this inverter battery is that it delivers superlative power and excellent efficiency while maximising battery life.

The 200Ah capacity allows this inverter battery to power heavy-duty appliances like refrigerators and even your computer printer. Thus, it serves as an ideal battery to support your home, office, or shop inverters.

A sterling aspect of this inverter battery is that it does not need much maintenance. It is a long-lasting battery for Indian conditions. It is capable of withstanding extended power cuts.

The fast charging feature of this battery enables it to recharge quickly, thereby proving ideal for use in places with frequent power cuts.

The low antimony alloy used in the manufacture of the tubular plates reduces the maintenance costs considerably. Another benefit of tubular batteries is that they last longer than the conventional inverter batteries.

The overcharge tolerance feature makes it one of the sturdiest batteries available in the market.

Pros
  • Minimum maintenance and maximum performance
  • Suitable for areas experiencing frequent power cuts
  • Overcharge resistance is of the highest quality.
Cons
  • Some consumers have complained of its high price.

6. Luminous Cruze 2KVA Inverter with RC 18000 Battery (Two batteries)

Luminous Cruze 2KVA Inverter is a robust appliance that can run heavy loads like AC and geysers at home. It can also run heavier loads in commercial establishments. This product is available with two batteries.

  • Sine wave inverter
  • Rated power of 1680W
  • Supports two batteries
  • Automatic over-load handling capability
  • MCB protection
  • Bypass switch available
  • Noiseless operations
  • Adaptive battery charging control system technology

Compared to the Luminous Zelio 1100, the 2KVA Cruze is a powerful appliance capable of powering ACs, refrigerators, and even geysers, devices that we usually do not connect to the inverters.

Though it is an ideal inverter to run an office, it can also be used as a home inverter for extended hours.

The Cruze, being a sine wave inverter, is a safe one for sensitive home appliances. One of the highlights of this inverter is the auto over-load handling capacity.

The bypass switch is useful for supplying the output directly from the electrical grid in the event of a fault in the home UPS. The low harmonic distortion ensures noiseless operations.

This appliance comes with an intuitive display that indicates the status of batteries and the availability of mains, etc.

It is one of the safest for home use because of its exclusive features like reverse polarity, short-circuit, battery deep-discharge and battery over-charge.

The adaptive battery charging control system (ABCC) enhances battery life by nearly 70%. It also ensures the quicker charging of the battery.

The unit comes equipped with two 150 AH batteries. These tubular batteries feature low antimony alloy, thereby ensuring low maintenance.

This inverter unit can easily handle five CFL bulbs, five tube lights, five ceiling fans, two LED TVs, one refrigerator, and one desktop computer. Alternatively, you can even run the AC and geyser by reducing some of the other loads.

The Luminous Cruze is, in many ways, a powerhouse of an inverter. If used in commercial spaces, it can also handle photocopier machines. This inverter ranks as one of the most potent inverters in India.

Pros

• Supports a range of electrical equipment
• Sufficient backup on offer
• No noise when switching on or off

Cons
  • Customers have reported issues with the battery, such as no good follow-up service.

7. Luminous Zelio 1100 + RC 15000 120AH Tubular battery + Trolley

This model, Luminous Zelio 1100, is similar to the one discussed earlier in this review. However, the difference is in the battery capacity. This inverter model comes with a 120 AH battery instead of a 150 AH as discussed in the earlier example.

  • Sine wave inverter with an excellent capacity of 900VA
  • The rated power is 756W.
  • This inverter supports a single battery
  • 32-bit DSP processor
  • LED display
  • Bypass switch available
  • Noiseless operations
  • Supports all kinds of batteries

Features-wise, this model is the same as the Zelio 1100 model discussed earlier. As it comes with a less powerful battery, it does not deliver the same level of performance.

If the model described earlier lasts for about 12 hours, this model might do so for nine to ten hours on a similar load. However, if you reduce the load, the inverters always last longer.

The intelligent 32-bit processor ensures to charge the batteries optimally. It also balances the backup and charging times intelligently to provide ideal performance.

This inverter features an LCD/LED display to indicate the critical parameters like backup time, charging time, the working mode, system faults, and the battery water level. It can run on the ECO and UPS mode, depending on your requirement.

The ECO mode saves power, whereas the UPS mode protects your sensitive appliances. The sine wave inverter also plays its role in protecting your devices. Besides, it features MCB to provide additional protection from the input mains.

You can use the bypass switch to switch power supply directly from the grid in the case of a UPS failure. The Zelio 1100 model is one of the most noiseless inverters around. The low harmonic distortion feature is an excellent one.

It also comes with comprehensive protection features like battery deep-discharge, battery over-charge, reverse polarity, and short-circuits.

This inverter supports all kinds of batteries. The specific model comes with a 120 AH tubular battery and a sturdy trolley to accommodate both the appliances. This complete unit should prove to be incredibly useful for almost all Indian homes.

Pros

• Sturdy and durable battery
• Classy looks and reliable performance
• Ideal for places experiencing frequent power cuts

Cons
  • Low customer service instances reported

8. Luminous RC 25000 200 AH Tubular Battery

The battery is the heart of the inverter. No inverter will work without a battery. Hence, one should concentrate on using the best batteries with the maximum capacity to store power. This Luminous RC 25000 200 AH tubular battery is one of the best in the business due to its excellent features.

  • Supercharged performance
  • Tubular plate design requires less maintenance
  • Excellent backup
  • Superb overcharge resistance
  • Powerful to the core

The advantage of a tubular battery over a flat-plate cell is the longer life expectancy. The Luminous RC 25000 200 AH battery has deeper charging cycles, thereby requiring less maintenance.

They are also safer to use when compared to the flat-plate batteries because they have additional protection for the tubes inside them.

The Luminous 25000 200 AH battery can deliver supercharged performance and withstand frequent power cuts. They are the best ones to use to power the inverters because of their excellent overcharge resistance capabilities.

The minimum maintenance required for such batteries makes them the perennial favourites of Indian homes.

Pros

• Design requires less maintenance
• High-quality back up
• Overcharge tolerance

Cons
  • A bit on the heavy side

9. Luminous Zelio 1100 Inverter with Red Charge 15000 120 AH tubular battery

Luminous Zelio 1100 is one of the highly-rated inverters available on the market today. The high level of compatibility will all kinds of batteries makes it one of the most versatile inverters in town today.

  • Easy to use appliance
  • Sine wave inverter with a rated power of 756 Watts
  • Intelligent home UPS with 32-bit DSP processor
  • MCP protection
  • LED display
  • Bypass switch
  • Noiseless operations
  • Supports all battery types

One quality that every inverter user looks for in an inverter is the safety it provides to the home appliances. The long-lasting battery is another critical feature. Besides, the inverter should have a smooth switch over option in case of power failures.

The sine wave inverter ensures the safety of home appliances. Besides, this inverter comes with additional protection devices like short-circuit, reverse polarity, battery deep-discharge, and battery over-load.

It also features an MCB to protect the appliances from input voltage fluctuations.

The bypass switch is also an excellent feature as it is a user-friendly functionality. It allows you to switch over to the electrical grid in the case of the home ups failure.

Besides, the Luminous Zelio 1100 is a noiseless operator because of its low harmonic distortion properties.

This inverter supports all kinds of batteries from the flat plate ones to VRLA. This specific model comes with a Red Charge 15000 120 AH tubular battery to provide uninterrupted power supply for a minimum of nine to ten hours depending on the load.

This inverter can easily handle three tube lights, three CFL bulbs, one LED TV, and three fans comfortably. Thus, it proves its utility as one of the best inverters available in India.

Pros

• Intelligent home UPS
• One of the safest inverters to use
• Supports all battery types

Cons
  • Does not support the refrigerator, especially the large ones

10. Luminous RC 18000 150 AH Tall Tubular Battery

The more powerful the battery, the better is the performance of the inverter. The compatibility between the inverter and the battery is a crucial aspect of its functioning. Hence, it is always advisable to use Luminous batteries for Luminous inverters.

  • 150 AH capacity
  • Tubular technology makes it a long-lasting battery
  • Low antimony alloy ensures less maintenance
  • Best for areas with frequent power cuts
  • Superb overcharge resistance
  • Exceptionally durable

This Luminous RC 18000 150 AH Tall Tubular Battery is a powerhouse of a battery because of its excellent features.

The unique patented alloy composition that protects the lead part of this battery from corrosion is the highlight. It ensures high levels of performance under the most adverse circumstances.

The sturdy design of this battery ensures that it withstands frequent power breakdowns.

The tubular technology makes this battery last longer than its contemporaries in the market. It features puncture-resistant dramatic separators that minimise the possibility of internal short circuits.

This battery is ideal for areas having high voltage fluctuations as its superior performance ensures the safety of your electrical appliances.

It provides the perfect backup required to run a standard Indian household.

Pros

• Tubular technology ensures long lifespan
• Less maintenance required
• Sturdy body, hence durable

Cons
  • Customer service unsatisfactory

11. Luminous Zelio+ 1100 Home Pure Sine wave Inverter UPS

We have seen the Luminous Zelio 1100 review earlier. The Luminous Zelio+ 1100 Home Pure Sine Wave Inverter UPS is an upgraded version of the one reviewed earlier. Here are the features of this inverter.

  • Pure Sine Wave Inverter with 900VA capacity
  • Supports all types of batteries
  • Safety features
  • Running load – 3 CFL, three tube lights, 1 LCD TV, one air cooler
  • Single battery compatibility – Battery not included in the package

The overall features of this inverter and the one described above are similar. This inverter is compatible with all kinds of batteries such as the flat, tubular, and SMF batteries. However, the present package does not come with a battery. You have to purchase it separately.

The Zelio+ 1100 Home Pure Sine Wave Inverter UPS is an intelligent one as it comes with attractive features like power backup, battery charging time display, battery water level indicator, and various security features.

The protection features include MCB to protect against short circuits and reverse polarity issues.

The bypass switch allows it to keep supplying output even in case of Home UPS faults. This inverter is a pure sine wave inverter. Hence, it does not make any noise and has a low level of harmonic distortion.

The sine wave feature also makes it an efficient appliance that helps save on your electricity bills.

The 32-bit DSP Processor acts as a battery management system by protecting your battery as well as the electrical appliances in your house. It ensures to maintain the output voltage at optimum levels at all times.

The LCD helps you to determine the backup time left, charging details, and also the level of water in the batteries.

This inverter comes with a 24-month warranty.

Pros

• Excellent safety features like an easy bypass switch
• Intelligent inverter system
• Capable of powering various electrical appliances

Cons
  • At times, the inverter makes more noise compared to its peers.

12. Microtek UPS Sebz 1100 VA Pure Sine Wave Inverter

The higher the capacity of the inverter, the larger the load it carries. This Microtek UPS Sebz 1100 VA inverter is ideal for big Indian homes (3BHK and more). It can cater to various electrical appliances such as fans, lights, computers, and even refrigerators and mixer/grinders. Here are the features of this inverter in brief.

  • Capacity 1100 VA
  • Pure Sine Wave Inverter
  • Works in a voltage range of 100V to 300V
  • Maximum output power 880 Watts
  • Adequate protection features
  • 24-month warranty

Microtek inverters are ideal for running electronic appliances as they come equipped with a micro-controller based battery management system.

This inverter is a pure sine wave inverter. Hence, it has low harmonic distortion and works noiselessly. The Microtek inverter is also an energy efficient one.

The LED display panel is handy for providing information such as the status of the battery and alerts you in case of faults.

The smart overload sense and short circuit protection are other attractive features of this inverter. The inverter shuts down if the load is higher than the prescribed levels. The UPS has in-built electronic protection to protect the batteries from deep discharging and overcharging.

This inverter comes with a multi-stage battery charger to ensure that the battery remains in peak working condition at all times. The appliance can work in a voltage range of 100 to 300V. The switchover time from the mains to the UPS is around 15 milliseconds.

This unit does not come with a battery. You have to purchase it separately.

Pros

• The switchover from power to inverter is quick.
• Capable of working in the voltage range of 100 to 300V
• Protection mode is an excellent safety option.

Cons
  • No indicator to show power failure

13. Microtek UPS 24A-7 Hb 950 VA Hybrid Sine Wave Inverter

Trust Microtek to manufacture quality inverters. This 24X7 Hb 950 VA hybrid sine wave inverter is a useful appliance that comes with the following features.

  • Capacity – 950VA
  • Supports one battery of 12V
  • Hybrid technology ensures noiselessness and better performance
  • IBGM technology to enhance battery life
  • PWM controlled automatic trickle mode (ATM) charging
  • Presence of a bypass switch

This 950 VA capacity inverter should be the ideal one to meet the requirements of the average Indian home. In addition to a few fans and lights, you can also use this inverter to power your TV and computer.

Using it intelligently allows you to operate the mixer and grinders as well. You have to ensure that there is no other load on the inverter.

The 950VA sine wave inverter does not make any noise and works tirelessly. The Intelli Battery Gravity Management (IBGM) technology ensures quicker charging of the batteries while providing long backups and enhancing battery life.

The additional attraction of this inverter is that there are two charging modes, the standard, and the fast charging modes.

This inverter comes with the PWM Controlled Multistage AYM charging to ensure the good health of the battery when it is at full capacity. The inbuilt bypass switch allows you to bypass the inverter if there is a fault in it.

The inverter works well in the input voltage range of 100V to 300V. The 80% efficiency in the battery mode is one of the best in the industry. It has an automatic switchover from the mains to the battery. However, it takes about 15 milliseconds.

Pros

• Impressive performance
• No noise when switching over from power to UPS
• Comes with the latest features

Cons
  • Customers have complained of a low whistling sound when connected to the mains.

We have seen some of the best home inverters with battery available in India in 2020. Now we will discuss the buying guide where we explain the various factors to look at while selecting your inverter.

Home Inverter Buying Guide

What is an inverter?

In straightforward terms, an inverter is a device that converts direct current (DC) into alternating current (AC).

Usually, all our appliances at home run on AC. The inverter comes with a battery that stores electricity.

During a power cut, the inverter system starts converting the stored DC from the battery into AC and resumes the electricity supply. It ensures that you can work unhindered even during the absence of regular AC supply from the mains.

Usually, you find inverters coming with specifications like 800VA, 1000VA, 1200VA and so on. The batteries come with configurations like 150ah, 200ah, and so on. What do these numbers signify? We shall discuss these aspects in detail.

Things you need to know

You have various electrical appliances at home. Let us now look at the regular electricity consumption of the common electrical appliances you find in every house.

Electrical Appliance Power Consumption
Television The traditional CRT TVs consume around 120 Watts whereas the LCD and LED TVs to take up 50 – 150 Watts and 30 – 100 watts depending on their size
Electric bulbs You have these bulbs coming with capacities 25 Watts, 40 Watts, 60 Watts, and so on
Computers Depending on the type of personal computers you have, they consume between 120 and 250 watts. The LCD monitors consume around 150 watts whereas the conventional CRT monitors consume about 250 watts
One fan Approximately 75 to 90 Watts
One tube light The standard tube lights consume around 45 to 50 watts whereas the T5 tube lights consume 28 watts
One CFL bulb These bulbs come in various power consumption capacities such as 10 Watts, 20 Watts, and so on
Set Top Boxes SD Set-top boxes – 8 Watts, HD Set top boxes – 18 Watts, and the HD DVR Boxes – 25 Watts
Mixers and grinders Approximately 300 to 400 watts
Induction Cookers These are high power consuming appliances in the range of 1000 to 1500 watts
Home theatres and gaming consoles These devices consume variable amounts of electricity depending on their size and usage. We shall assume a safe figure of around 100 watts
Air Coolers About 250 to 300 watts
Induction Cookers These are high power consuming appliances in the range of 1000 to 1500 watts
Mobile Phone Chargers and Wi-Fi routers These appliances consume about 5 watts or less

We have listed out almost all the appliances we use daily. You have other devices like your water heaters, water purifiers, refrigerators, and air conditioners. These appliances are high consumers of electricity. Hence, people usually do not connect them to the inverters.

You will not use all these appliances at the same time. Assume you wish to use one CFL bulb, one fan, one tube light, and one LCD TV during a power failure situation. These appliances will consume approximately 275 to 300 watts.

Now, you need this backup to be available for say 4 hours. Therefore, you will need to store 1.1 to 1.2 kWh of electricity (units of power).

Know how to calculate the VA rating of the inverter

The thumb rule is that you divide the total required load in watts by 0.8 to arrive at the VA value.

In our case, it would be around 343 VA to 375 VA. This figure will be your maximum inverter load. Now, you will not get an inverter with exactly the VA value you want.

You should go for the next higher round figure. In our example, you can safely select a 400 VA inverter.

Remember, you need to calculate your exact requirements. It is always better to choose higher values as you could end up with an inverter of higher capacity. It will cost you more but will give you better backup.

Which is the right battery to choose?

The capacity of the battery also depends on the load and the duration of the backup. In our example, we have opted for a 400 VA inverter. We need the backup for 4 hours. Thus, we would need a VAh value of 1600.

The batteries available on the market are of 12 Volts. Therefore, you arrive at the Ah value of 33. Inverter batteries come with Ah values such as 100, 120, 150, 200, and so on.

In our case, a 100 Ah battery would suffice. It is better to go for a higher configuration as a matter of abundant precaution.

How do you handle the bigger appliances?

We know that you have a question at the back of your mind. How should you handle Air Conditioners and refrigerators? Power consumption wise, the refrigerator would consume an average of 300 to 350 watts.

The compressor in the conventional refrigerator does not work on a continuous basis. It stops and starts depending on the cooling requirements. The fridges require a lot of electric power to start.

The ideal inverter should be the 2.5 KVA for your refrigerator. Overall, your fridge consumes around two units of electricity per day. Hence, you need an inverter of higher capacity whereas a small battery will suffice for powering your fridge.

The AC units are also similar in their functioning to the fridge. The compressor constantly switches between the start and stop. As AC units consume more power than the refrigerator, you need a 3.5 KVA inverter along with multiple batteries or battery with a high Ah value.

Therefore, people do not connect the inverter to the AC or the refrigerator.

Different types of inverters

There are three different categories of inverters available on the market.

Sine Wave Inverter

The sine wave inverters have a rotating AC machinery to generate power. As most of our electrical appliances are compatible for operation on sine waves, it is better to select a sine wave inverter for your home.

Remember that these inverters are the most expensive of the lot, but they are ideal for catering to heavy loads.

Modified Sine Wave Inverter

In a modified sine wave inverter, the waveform is more like a square. Such an inverter can also work with most of the electrical appliances, but it can reduce the efficiency of the device.

Therefore, you might hear a humming or buzzing sound. You would also experience the fluorescent lighting to be dimmer than they usually are. As compared to the sine wave inverter, the modified sine wave inverters are affordable.

Square Wave Inverter

The square wave inverters are the cheapest of the lot. They are also the inverters with the least efficiency. Not all electrical appliances work with these square wave inverters.

Hence, they are not as popular as the inverters discussed above.

Different types of batteries

Just as there are different types of inverters, you have three categories of batteries. These batteries vary depending on the internal technology used to store the current. The three types of batteries available today are as follows.

Flat Plate Battery

These are the first-generation lead-acid batteries. These batteries have two electrodes immersed in an electrolytic solution of sulphuric acid and water.

The negative electrode consists of a porous lead whereas the positive electrode is made of lead oxide. These are lightweight batteries costing in the range of around ₹ 9000 to ₹ 15000. The only disadvantage is that they require regular maintenance.

You need to replenish distilled water every three or six months depending on its usage. Delaying this top-up can damage the battery and reduce its life. Secondly, these batteries emit noxious gases whereby you need to place them in areas having sufficient ventilation.

Nowadays, these batteries are becoming outdated with the tubular batteries replacing them.

Tubular Battery

The tubular battery is an improvement over the flat plate battery. These batteries last longer than the flat plate batteries as they come with a battery life of around five years.

The reason for their efficiency is the deep charging cycles and relatively less maintenance. These batteries have tubes protected by a cloth in place of the positive lead oxide plates.

Costs wise, the tubular batter is expensive in comparison to the flat plate batteries as they come in a range of ₹ 9000 to ₹ 25000.

Sealed Maintenance Free Battery

The name explains it all. These batteries do not require any maintenance. The nature of the electrodes used is such that there is no need for replenishing with distilled water.

These batteries are the safest of the lot as they do not emit obnoxious gases. These batteries are also referred to as VRLA (Value Regulated Lead Acid) batteries. These batteries are expensive as compared to the other two categories discussed above.

They have a shorter life as well in comparison.

If you compare the various features side-by-side, the tubular batteries are the most popular of the three.

Difference between an inverter and the UPS

The fundamental functions of the inverter and the UPS are the same. However, there are minor differences. When there is a power cut, there is a need to switch over from the main line to the battery power.

The inverter takes around 100 milliseconds whereas the UPS would do the switch in 3 to 5 milliseconds. Therefore, you get almost uninterrupted power supply in a UPS system.

Specific appliances like your desktop PC can switch off even if there is no power supply for a few milliseconds. Hence, you have to use the UPS instead of the inverter to ensure that the PC does not switch off during a power cut.

There are two types of UPS, the online UPS, and the off-line UPS. The difference is that the online UPS supplies power continuously from the battery even when the mains line is on. It recharges the batteries simultaneously.

Therefore, there is no loss of power even for a single millisecond. On the other hand, the offline UPS uses the battery power only when there is a power cut. At other times, it uses the main power line.

Precautions to take while buying an inverter

Check the wiring of your house

Before purchasing your inverter, you should consult an electrician to determine whether your home wiring has a facility for backup. If you are looking for providing backup to all the home appliances, it should not be difficult.

However, people usually exclude the refrigerators and air conditioners from the inverters. Hence, it becomes necessary to consult the electrician and isolate these appliances before you purchase your inverter.

Choose the right combination of battery and inverter

We have discussed these aspects in detail. You should gauge your power requirements and choose the right combination of your inverter and battery. This table should help you select the perfect combination.

Power requirement Back Up in hours Suggested Inverter Capacity  Suggested battery size
300 Watts  2 hours 750 VA 50 Ah
600 Watts 2 hours 1500 VA 100 Ah
900 Watts 3 hours 3500 VA 300 Ah
1000 Watts 3 hours 4000 VA 300 Ah
1200 Watts 4 hours 6000 VA 400 Ah

Inverter trolley

Placing the inverter in the right position is a crucial aspect. It should be on level ground. An inverter battery combination is a heavy appliance. It is better to purchase a trolley that can accommodate both the inverter and the battery.

It is better to place the inverter as near to the mains supply as possible. It will avoid the unnecessary hanging of wires all over the place.

Earthing and other issues

Ensure that your home has proper earthing facilities to avoid accidents like electrocution and short-circuits. Avoid touching the inverter or battery terminals with wet hands.

Keep the inverter out of reach of the children in the home. Clean the inverter and battery of the dust that could accumulate on them.

Remember to replenish the distilled water supply at regular intervals. Keep a calendar handy where you can note down the details of refilling.

Warranty

Opt for inverters that provide a good warranty. The longer the warranty, the more is the price of the inverter. Remember, that an inverter and battery combination is a long-term investment.

Go for the best combination that ensures proper value for the money you spend.

Take care of your inverter and batteries

Purchasing an inverter should now be easy. However, you should maintain the inverter well to enable it to work efficiently for a long time.

Taking care of the batteries is vital to increase the lifespan of the inverter. We shall now quickly go through the precautions you should take to improve the life of your batteries.

1. The tubular and the flat batteries require regular replenishment of distilled water. Depending on the type of the battery and the usage of the inverter, the replenishment period can vary between one and three months.  Maintain a calendar, preferably on your smartphone that alerts you to replenish the water.

2. The socket connections can rust as the water can spill out at times. The humidity can also cause rust. This rust can affect the connections. Applying grease on these connections can help prevent rusting.  If there is corrosion, you should use a mixture of baking soda in hot water to remove the rust.

3. Discharge the battery completely at least once a month and charge it again. It will rejuvenate the electrolyte solution.

4. Do not connect heavy loads to the inverter. Avoid connecting refrigerators, air conditioners, washing machines, and water heaters.

5. If you need to use the mixers and grinders, it is better to switch off all the other appliances to prevent overloading.

6. Place the inverter on a flat surface, either horizontally or vertically.

7. Never place it near the engine compartments like your motor. Keep it away from moisture and water. Do not keep the inverter in direct sunlight. Ensure that there is ample ventilation in the room where you place your inverter.

8. Clean your inverter from time to time. Dust can stick to the connections and affect the performance of your inverter.

9. Do not place flammable materials near your inverter as you increase the risk of fire.

Source: Su-Kam, LuminousIndia, Bijlibachao, electricalnotes

Take care of your inverter and batteries. They can serve you for a long time.

Best Inverter For Home – FAQ

1. Can we connect refrigerators and ACs to the home inverters?

Technically, there should not be an issue because the modern-day inverters and batteries can handle heavy-duty loads. However, refrigerator and AC compressors consume a high volume of current when they switch on. The inverter battery might not be in a position to handle this load. Hence, people avoid connecting ACs and refrigerators to home inverters.

2. Which is the best type of inverter available in the market?

The Sine Wave inverter is the best because it can withstand heavy loads. They are expensive compared to other inverters, but worth the money you spend on them.

3. Which is the better battery, flat plate, or tubular?

The tubular battery is a better option because they last longer and require less maintenance.

4. Is the SMF battery a better option than the tubular and flat plate batteries?

SMF batteries do not need any maintenance at all. They are the safest of all the three batteries under discussion because they do not emit any poisonous gases.

5. What is the difference between an inverter system and UPS?

Both inverter and UPS provide similar services but with a small difference. The inverter takes 100 milliseconds to switch from the mains line to battery power, whereas the UPS takes approximately 3 to 5 milliseconds. Thus, UPS is a better option to have for connecting electronic equipment like computers.

2 Comments

  1. I required inverter to back up the thee tube lights, four fans for 4-6 hours and one work station having 1000 watt power supply fitted in it for only 10 minutes time. Which inverter and batteries I required for which capacity. Give me the best solution.

  2. Thanks, This article is precise and doesn’t beat about the bush. The content here is all the knowledge a layman like me needs to choose the right electricity back-up solution for my home. The inverter-battery calculator is brilliant. Keep up the good work.

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