Batteries are like heart of the Inverters. Being the main power source, a reliable battery can provide uninterrupted power supply for longer hours.
However, if you choose an incompatible battery size, inverter becomes completely useless. So, it is very important to consider certain factors before purchasing inverter battery. Few factors are mentioned below…
1. Battery Type
Most of the inverter batteries in India are lead acid based ones. Further, they are categorized into tubular, flat and sealed lead-acid.
- Flat Plate Batteries – This option is perfect if you use inverter occasionally. However, it is not suitable for areas with frequent power cuts.
- Tubular Batteries – They have advanced built construction making it suitable for areas with frequent power cuts.
- Sealed Lead-Acid Batteries – They are perfect for high critical workloads.
2. Battery Size
As already mentioned, battery size is a very important factor. To know which battery suits you, below is the formula calculation…
Battery Size = Inverter VA rating X Usage time (in hours) / Input voltage
If you wish to have a backup for 6 hours with a 380 VA inverter and battery input voltage of 12 V, the total battery size would be:
380 X 6/12 = 190Ah
For further information, we recommend reading our “BUYING GUIDE“. To help you make the right purchase, we have shortlisted best inverter battery available in India after testing them individually.
Best Inverter Battery in India
|Best Batteries||Capacity||Warranty||Weight||Buy Now|
|Luminous RC 18000 Tall Tubular Battery||150 Ah||3 Years||60kgs||Check the Price|
|Amaron Inverter Tall Tubular Battery||150 Ah||3 Years||62kgs||Check the Price|
|Exide New Instabrite Inverter UPS Battery||150 Ah||3 Years||40 kgs||Check the Price|
Best Inverter Battery Reviews in India
The Luminous batteries are made up of an exclusive alloy component that guards the lead against corrosion. The component has been patented by the company for it provides a homogenous grain structure that is void free and ensures supreme performance. So, this is our first choice in this list.
Luminous RC battery is an energy efficient device that reduces overall energy consumption due to its quick charging feature and longer back up. The unique design of the battery is created using the High Pressure Die Casting (HADI) machine which gives it a stronger outlook and even helps in maintaining the void-free uniform grain structure.
The corrosion-free spine alloy component ensures that the battery runs for a longer period. The purity of the component assures low maintenance while the tubular plate construction allows uniform distribution of the power for high-quality performance.
The puncture resistant separators by Daramic USA, minimizes the potential of internal short circuits. The balanced plate design and the inter-partition connection take care of the internal resistance while presenting an excellent charge acceptance.
The battery ensures its lifespan to over 1250 cycles at an exceptional 80% depth of discharge. The Luminous RC 18000 battery is best suited for areas that observe frequent power cuts.
- Tall Tubular battery
- Faster charging
- 150Ah capacity
- Uses 12 volts
- Weighs around 60kgs
- Has a longer back up
- Comes with 36 months warranty
Under a decent price bracket, the Luminous RC 18000 150Ah tall tubular battery is an ideal choice for a home inverter. It has low cost maintenance for a battery with excellent backup. It is best suited for areas where power cuts are very frequent and are for longer hours. A really value for money proposition!
- Exceptionally long back up (up to 12 hrs)
- Flexible oxidation resistant gauntlet for correct fitment.
- Low power consumption.
- Longer life expectancy (3-5 yrs)
- Resists voltage fluctuations and provides the undisturbed power supply.
- Low maintenance
- It is a flooded cell battery
- The battery is pretty heavy.
dressing issues such as long power cuts and voltage fluctuations require a sturdy and reliable battery. Without causing much damage to the internal components, Amaron tall tubular battery withholds overheating of the inverter induced by inconsistent voltage supply. The grids are made up of high heat resistant calcium with ultra modified alloy providing you with minimal maintenance. These features are worthy of taking the second spot on this list.
Its superior quality vent design downplays the mist formation and acid-spewing problems. Serrated separator tubes are used to prevent acid stratification. Water levels can be monitored from the outside and the battery requires water replacement just once a year.
The high-pressure spine casting of the tubular battery has resulted in a uniform, coarse-grained, single directional, void-free structure that supports longer shelf life. Panoptic spine prevents rusting of the tube by reducing lead corrosion.
In addition to this, the tall tubular battery has a low reserve of lead resulting in fewer chances of leakage.
- 150Ah capacity
- Quick charging
- Provides backup for 15-24 hrs
- Dimensions of the battery read as 35.6 X 30.5 X 27.9 cm
- Weighs around 62 kgs
- High energy reserve capacity
- Comes with a warranty of 48 months
- It is a c20 battery suitable for solar inverters.
Compatible with multiple inverter brands preferably those with 800-1100 VA, the Amaron 150Ah tall tubular battery is ideal for domestic power backup. It is best suited for the extreme weather conditions of India due to its high heat tolerance capacity. It presents minimal maintenance cost due to its low lead reserve and reduced mist formation feature. The charging of the battery is quick and easy and takes about 8 hours to recharge after full energy discharge. Under warranty, in case of any issues with the battery, onsite services are available from the company as well as in any of the company service stations in India. The only reason it is placed below our topper Luminous, is the fact that it is quite a bit expensive and heavy as well.
- Comes with a 3-year replacement warranty in addition to a 12 month extended warranty (48 months).
- Low maintenance.
- Ranks highest amongst its counterparts with respect to energy reserve capacity.
- Reduced mist formation and low acid leakage.
- Quick and easy charging.
- Tolerates high temperatures.
- Steep pricing of the battery.
- Heavy to carry.
- Unpredictable outputs when connected to refrigerators and televisions due to their inductive loads.
Exide Instabrite provides long power backups especially in countries like India where power cuts are more frequent. The company claims that the battery provides instant brightness owing to its superior technology and unique features. The Exide 150Ah battery withstands high temperatures making it ideal for extreme weather conditions.
The battery is made up of thick Faure plate grids using a special paste formulation of red lead and litharge to resist internal short circuits. Its special hybrid alloy system reduces mist formation resulting in minimum water consumption. The dual plate separation of the battery reduces the chances of it undergoing shocks and vibrations. This feature helps in preventing premature failure of the battery and hence low maintenance of the device.
The top vented lid of the battery has anti-splash guards that are equipped with coin type flush vents. These are basically preventive plugs that are mainly there to resist any form of fumes and leaks. The float charge in the battery is supported by a spark arrestor in order to resist fumes and any form of acid leakage when in application. The batteries are supplied in a factory charged condition along with a float guide to indicate the electrolyte levels.
Also, a clean top-no surface leakage design is ready for commissioning by the company.
- It has a dimension of 30.5 X 25.4 X 22.9 cm
- Weighs around 40 kgs
- 150 Ah capacity
- Spill-proof body
- Comes with a 36-month warranty
- Designed using superior technology
Longer power backup for lesser price. As mentioned earlier, this battery is best suited for areas with extreme weather conditions. The maintenance required is almost low to nil. This flooded cell battery provides backup for 3-5 hrs at a stretch while withstanding voltage fluctuations.
- Its advanced hybrid technology helps in high-temperature tolerance.
- Moulded handles on the side of the battery allows a good hold.
- Lightweight for a 150Ah capacity battery.
- Anti-splash guards.
- Long shelf life.
- Low maintenance.
- Comes with a spark arrestor.
- Energy efficient.
- Some reports on bad after sales service.
How to Choose an Inverter Battery?
As already mentioned above, mismatched battery makes the inverter completely useless. So, it is very important to understand the objectives and choose wisely.
1. Inverter Battery Type
All the inverter batteries are lead-acid batteries. They comprise of 2 electrodes that are dipped in an electrolyte solution. The electrodes used here are lead and lead-dioxide, and this is why it is called as lead-acid battery.
The electrolyte used in these batteries is sulfuric acid. When both the electrodes are dipped in this sulfuric acid solution, it leads to a number of chemical reactions that generate DC current. Since the chemical reactions are reversible, this makes the battery rechargeable.
Based on their internal technology used for storing current, inverter batteries are categorized into three types – Flat plate battery, Tubular battery, and Sealed maintenance free battery. Detail information of each battery type is provided below the table.
|Characteristics||Flat Plate Battery||Tubular Battery||Sealed Lead Acid Battery|
|Ideal for devices like||Devices that consume low power||Heavy- duty appliances & at areas with frequent power cuts||For UPS applications, provides back-up time for less than 1hr|
|Depth of Discharge tolerance levels||Works for discharges with 80% of battery’s capacity||Works for discharges with 80% of battery’s capacity||Works for discharges with 50% of battery’s capacity|
|Cyclic operation life (Charge cycles at 80% Depth-of-Discharge)||500 – 800 cycles||1000– 1200 cycles||400 – 450 cycles|
|Charging time||Slowest when compared to tubular batteries||Fast charging||Fast charging|
|Performance level at different temperatures||When compared to tubular batteries, offers inferior operation||Offers average performance at extreme temperatures (both high and low)||At higher temperatures, the capacity reduces|
|Battery orientation||Fixed||Fixed||Works fine in any orientation|
|Battery Life||3 Years||4 - 5 Years||3 - 4 Years|
|Frequency of Water-Topping||High||Medium||Low|
|Emits chemicals & harmful gases||Yes||Yes||No|
|Weight||Low||High||Depends on the Model|
|Price||Rs. 8,500 - Rs. 15,000||Rs. 9,000 - Rs. 30,000||More than Rs. 11,000|
Flat Plate Battery
Also known as first-generation batteries, this type is the most commonly used battery in India. is recommended only if you are going to use it occasionally. It is not suitable for areas where there are frequent power cuts.
These batteries are designed using a combination of positive and negative plates that are made using pasted grids. The batteries are not only economical but lightweight too. Based on your capacity requirement, you can find this battery type within Rs. 8,500 to Rs. 15,000 budget.
One of the disadvantages of this type of battery is it requires a lot of maintenance. You will have to keep replenishing the battery with mineral-free distilled water in a regular interval of time. This time varies from 3 months to 6 months, depending on its capacity. If this is not done in time, you might end up damaging the battery.
Apart from this, the lifespan of the flat plate battery is short. Few users don’t consider it safe as the battery emits poisonous gases in a very small quantity while it is kept for charging or while discharging. Thus, it is suggested to place the battery in a well-ventilated area and not near any flammable substances.
It takes a bit longer to charge when compared to other types of batteries, especially the tubular batteries. But as they are becoming outdated, people are preferring tubular batteries over them.
They are improvised version of flat plate batteries. Though it is a lead-acid battery like flat type, its construction and features are much advanced. This makes it an ideal choice for places where the power cuts are very frequent and for longer hours.
Similar to flat plate batteries, the tubular batteries are made using negative plates. The difference here is the positive plates are made using spines which are placed under tube packets.
The tubular batteries offer a longer lifespan of up to 5 years. As they use deep charging cycles, the batteries offer an efficient and low maintenance performance. When compared to flat plate batteries, the tubular batteries are a bit pricey and might cost you around Rs. 9,000 – 30,000.
Even though these batteries are a bit expensive, they make it up by offering a longer life span. Not only this, the batteries are highly reliable and they go easy on maintenance.
The reason these batteries offer an efficient and long lasting performance is he positive plates in the batteries are replaced using a series of parallel polyester tubes that are filled with lead oxide. The batteries are thus, termed as the Tubular batteries.
The polyester tubes help in increasing the efficiency and the life of the batteries. Not only this, the tubular batteries charge way faster than the flat plate batteries and are always ready to provide you a source of power in case of emergencies.
Sealed Lead Acid or Maintenance Free Batteries
The sealed lead batteries are called using multiple names such as Deep Cycle SMF (Sealed Maintenance Free) or Sealed batteries, or VRLA (Value Regulated Lead Acid). As the name suggests, these types of batteries require no type of maintenance at all. And thus, you will not have to go through the hassle of refilling distilled water at regular intervals.
The reason behind this is that the batteries are filled with a special type of electrolyte which does not need any replenishment. The manufacturers here make sure that there is a sufficient amount of acid or electrolyte present in the battery so that it continues to sustain the undergoing chemical reactions for a particular time period.
These batteries are completely safe to use and do not emit any poisonous or harmful gases. If you don’t have time to refill the distilled water regularly, this is the best choice for you. The only downside of this battery is they are pretty expensive and they don’t offer a longer life span, unlike tubular batteries.
2. Battery Size
You should always know the size of the battery that you require. It helps you check whether it is sufficient according to your requirements or if it is compatible with the inverter that you already have. If the battery size does not meet your expectations, it might not give you the desired results.
You can use the formula below to calculate the battery size:
Inverter VA rating X Usage time (in hours) / Input voltage = Battery size
If you wish to have a backup for 6 hours with a 380 VA inverter, then the total Vah that is required is
380 X 6 = 2,280 Vah
A regular battery offers an input voltage of 12 V. Thus, the total Ah value required would be:
2280 / 12 = 190 Ah
Whenever you go to buy a battery for your inverter, the Ah is one of the first things that you should look for. The Ah value represents the amount of energy that a battery can store. You will find batteries with a capacity of 100 Ah, 120 Ah, 150 Ah, 200 Ah, and so on.
In the above example, a battery with a capacity of 200 Ah would be an ideal choice.
The warranty for inverter batteries offers 2 components: FOC and Pro-rata. Let’s learn about them in detail.
FOC is also called as Free of Replacement. This means that during the FOC period if battery fails, you can get a free replacement of the battery from the manufacturers.
According to Pro-rata, if the battery fails to perform, you will have to pay some money, depending on the time period when it stopped working. For example, if the battery that you bought has a warranty of 48 months (36 months FOC + 12 months pro rata) and the battery fails to perform in the 39th or 40th month of purchase, then 75% value will be deducted from the total MRP of the battery. Thus, you will get a discount of 25% on the MRP for a new replacement battery.
While picking a product, we would recommend you to check for a battery that offers more FOC months than looking for Pro rata.
A good warranty policy is an indication of the quality of the battery. A brand that offers a longer warranty period means that the brand is sure of the efficiency of the battery and its long-lasting performance.
Thus, it is always advisable to buy a battery with a longer warranty period.
Avoid buying batteries from local manufacturers
It is suggested not to buy inverter batteries from local manufacturers even if they promise to offer good features at a low price. Instead, always go for a branded product, even if they are costly. The local manufacturers don’t follow proper efficiency standards and safety measures. They also offer a shorter life span comparatively.
Even though these local brands promise to offer great performance, they end up emitting fumes and poisonous gases such as carbon monoxide. They require a lot of maintenance work and don’t even offer a proper warranty or guarantee.
How to increase the life span of the inverter battery?
Here are a few tips that you can follow to improve the life span of the inverter battery.
- Replenish the distilled water at frequent intervals, depending on the type of batteries or the usage patterns. While few batteries require refilling after one month itself, some require after 3 months. You can set a reminder so that you don’t forget this.
- Apply a small amount of grease to the socket connections. This prevents the inverter battery from rusting or corrosion.
- If there is a build-up of rust or corrosion, clean it using a brush. You can make a mixture of baking soda and water to remove the rust.
- Try to use energy-efficient appliances on the inverter battery as they help in lowering the power burden. Overusing the inverter by connecting a high load device might affect its efficiency.
Best Brands for Inverter Batteries
As we said above, you should always buy an inverter from a reputed and well-known brand. Some of the top manufacturers of inverter batteries in India are Su-Kam, Amaron, Luminous, Exide, and Okaya.
The after-sale support plays a major role in the maintenance of the batteries. There are few brands that even offer distilled water top-up facility. They send an executive to your place to replenish the water once you request them to do so. You can call the customer support team directly for any help and these brands just make your job easier.
Before buying an inverter battery, you should always check for the services offered by the brands. You might not find it useful in the initial days but if the battery is troubling you, the service provided by the best brands can be very useful.
Frequently Asked Questions?
Although a higher capacity battery provides longer backup, for those living in the areas that see frequent power cuts it is also important to consider the factors such as how quick is the charging and will the device withstand extreme temperatures in the environment. Tubular batteries check all these boxes. Tall tubular batteries are recommended for frequent power cuts.
Unfortunately, no! Most of the inverters do not come in a package. It is up to the consumer to find a compatible battery to the inverter.
Depends on which type of battery you own. Lead-acid batteries are compatible with solar charging. It also depends upon the inverter you have.
All inverters come with an alarm indicator placed in the front portion of the device. Some inverters even use an indicator for protection against overcharging.
It basically represents the water level of your battery. This water/electrolyte level indicates the efficiency of the battery.
Producing a considerable amount of noise while converting the stored energy from the battery to the current is absolutely normal. If the noise produced is unusual and if there is a noticeable change in the rhythm get in touch with your electrician or customer care.
The duration of the backup depends upon the battery capacity. Higher the ampere, longer the backup. A 150Ah battery will run consistently for at least 4 hours.
Batteries work with the combination of lead plate grids and dilute sulphuric acid. It converts electrical energy to potential chemical energy when charged and reverse the process while in use providing backup.
It basically denotes the potential quantity of energy that can be stored in a battery. It is expressed using Ampere hours (Ah) where 1 Ampere = 3600 coulombs of charge. The higher the battery capacity, longer is the power backup.
A water indicator is placed on the front panel of the device which lets you know when it needs to be replenished. However, one should be careful to avoid overwatering or underwatering the battery for maximum efficiency.
Overcharging the battery or partial charging of the battery leads to internal component failure.
Ah represents the amount of energy stored in the battery. It stands for Ampere hour where 1Ah = 3600 coulombs of charge. The capacity of the battery is just another term for the quantity of energy stored in the battery. Higher the capacity, longer the backup.
A battery bank is the number of batteries required by the inverter in the long run to serve efficiently. The number of batteries used depends on the inverter quality and capacity. A good inverter can use anywhere between one to 30 batteries in its lifetime. The company generally specifies its bank capacity. The backup time can also be increased by adding more batteries. In other words, an increase in the battery bank size may increase the backup power. However, it should be noted that the batteries with 12V should be used.
Choosing the right battery for your inverter is not rocket science. You just have to keep a few points in mind in order to support the health of both battery and the inverter for their maximum efficiency. Advancement of technology from lead-acid batteries to tubular batteries has made our life easier and hassle-free.
Our top pick in this list is the Luminous RC 18000 150Ah Tall Tubular Battery. With a capacity of 150 Ah and claimed backup of upto 12hours, it is by far the ideal inverter battery at a decent price. It also comes with fast charging and very low maintenance period. Overall, it is very much suited for Indian conditions where power cuts are frequent. Moreover, it also has a comprehensive 36 months warranty!
There are 2 other inverter batteries in this list, which are also quite potent and can handle situations similar to the Luminous above. So, it is basically your choice and requirements on which one you personally want to invest on.
If you have any more inverter batteries in mind, that we have missed, do forget to comment down below!