What are Inverter Batteries, and How Do They Work

High-performance inverter batteries keep your home powered during outages, and with Bajaj Finserv Easy EMIs, you can buy them affordably.
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Explore Inverter Batteries
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3 min
3 September 2025

An inverter converts DC (Direct Current) power from a battery or solar panels into AC (Alternating Current) power, which is used by most household appliances. It ensures a continuous power supply during outages, keeping essential devices operational and homes running smoothly.

Browse a wide range of inverter batteries on Bajaj Mall. Choose from top brands, compare features, and select the ideal model for your needs. Once you have made your decision, visit any of Bajaj Finserv's 1.5 lakh partner stores across 4,000 cities in India to complete your purchase. With Bajaj Finserv’s EMI Network, enjoy benefits like Easy EMIs, zero down payment, and instant financing. Check your loan eligibility online in minutes—so you know exactly what you can get, before you even step into the store.

Introduction to inverter batteries

Inverter batteries are the backbone of any backup system, storing energy to keep your appliances running during outages. They ensure that you have an uninterrupted power supply when you need it the most. Available in different types and capacities, they are commonly used in homes, offices, and small businesses.

A dependable inverter battery paired with a quality inverter, such as the Luminous Zelio 1100, guarantees efficiency and performance. Understanding how they work helps you choose the right model for your usage.

How do inverter batteries work

An inverter battery stores energy from the main grid or solar panels when power is available. During an outage, the inverter converts this stored DC energy into AC power, running your appliances.

Its performance depends on factors like capacity (Ah), charging cycles, and maintenance. Models like the Luminous 1050VA with 150Ah battery are examples of efficient combinations. With proper care, these systems ensure a consistent, reliable power supply.

Also read: Choosing the right inverter battery capacity

Types of inverter batteries: Lead-acid vs. lithium-ion

When buying an inverter battery, the type matters. Lead-acid batteries are affordable, widely available, and suitable for moderate use, but they need regular maintenance.

On the other hand, lithium-ion batteries are lightweight, long-lasting, and require little to no upkeep. Although costlier upfront, they are more efficient for modern high-capacity needs. Your choice depends on usage patterns, budget, and how long you want your system to last.

Also read: Solar batteries vs inverter batteries

Key features of a good inverter battery

A good inverter battery ensures uninterrupted power and long-lasting performance. Here are the key features you should look for:

  • High capacity (Ah rating): Determines backup duration. A higher rating means your appliances run longer during power cuts.
  • Efficiency: Retains performance even after multiple charge and discharge cycles, ensuring reliability.
  • Durability: Built to handle frequent outages and heavy loads without losing effectiveness.
  • Heat management: Prevents overheating, which can extend battery life.
  • Maintenance needs: Lead-acid batteries need water refills, while lithium-ion options are virtually maintenance-free.
  • Safety features: Includes overcharge protection, short-circuit prevention, and sturdy casing for secure use.
  • Compatibility: Matches well with inverters, such as the Smarten solar inverter, for optimal performance.
  • Warranty coverage: Provides assurance and service support, giving you peace of mind.

Explore a wide range of inverter batteris on Bajaj Mall and make your purchase from a partner store.

With Maha Bachat, combine dealer offers, Bajaj coins, and exclusive deals to make your purchase more affordable. Check your savings now.  

Different Factors that affect the functioning of inverter batteries

Several factors influence how well your inverter battery performs. Being aware of these ensures that you select wisely and maintain it properly.

  • Battery capacity (Ah): A higher capacity means longer backup hours during outages.
  • Type of battery: Lithium-ion lasts longer with less maintenance, while lead-acid offers affordability.
  • Temperature conditions: Extreme heat or cold can reduce battery efficiency and lifespan.
  • Charging cycles: Frequent charge and discharge cycles affect overall battery health.
  • Maintenance: Regular water refills (for lead-acid) and clean terminals keep the system running efficiently.
  • Inverter compatibility: A battery matched to your inverter ensures smooth functioning and energy savings.

Explore inverters on EMI with Bajaj Finserv

For those in search of a dependable inverter, Bajaj Mall offers a wide selection to meet your energy needs. After reviewing product specifications, you can visit your nearest Bajaj Finserv partner store to finalise your choice.

With financing options from Bajaj Finserv, owning an inverter becomes stress-free, allowing you to spread costs over time. Choose a repayment tenure that suits your budget and enjoy affordable monthly instalments. Bajaj Finserv also provides financing solutions across a wide range of electronics.

Benefits of shopping with Bajaj Finserv

  • Affordable pricing: Get cost-effective deals on inverters at Bajaj Finserv partner stores, ensuring your purchase stays budget friendly.
  • Easy EMI: Buying an inverter has never been easier. Bajaj Finserv offers flexible repayment plans, letting you manage costs conveniently with Easy EMI.
  • Zero down payment: Eliminate upfront expenses. Select inverter models come with zero down payment options, so you can pay gradually without an initial financial burden.
  • Wide range and accessibility: Explore a comprehensive collection of inverters across Bajaj Finserv partner stores and find the perfect model for your home.
  • Special deals and cashback: Enjoy exclusive offers, discounts, and cashback benefits when you purchase an inverter.
  • Complimentary home delivery: Selected inverter models come with free home delivery, ensuring a seamless and hassle-free shopping experience.

Inverters by top brands 

Genus Inverter

Smarten Inverter

Su-Kam Inverter

V-Guard Inverter

Livguard Inverter

Sine Wave Inverter

Luminous Inverter

 

Inverters by types 

Solar Inverter

Hybrid Inverter

 

Inverters by volts 

48 Volt Inverter

24 Volt Inverter

12 Volt Inverter

 

Inverters by budget

Inverter under Rs. 5,000

Inverter under Rs. 10,000

Pro tip:

Celebrate Ganesh Chaturthi the smarter way – bring home appliances and gadgets at up to 60% off

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Frequently asked questions

Can I buy an inverter on Easy EMIs?

Yes, you can purchase your preferred inverter with Bajaj Finserv’s Easy EMI options. If you are an existing user of the Bajaj Finserv Insta EMI Card:

  • Explore a wide range of inverters on Bajaj Mall
  • Choose the preferred model and visit a Bajaj Finserv partner store to check it out in person
  • Use your EMI Network Card and avail of Easy EMIs for affordable monthly payments
  • Enjoy your new inverter on Easy EMIs

If you do not have one, there is no need to worry. Check your Insta EMI Card eligibility and take the first step towards enjoying the affordability and convenience of Easy EMIs

What is the primary function of an inverter battery?
The primary function of an inverter battery is to store electrical energy and supply it to the inverter when the main power supply fails. It converts stored DC power into AC power through the inverter, ensuring a continuous power supply to essential appliances during outages.

How long does an inverter battery last?
The lifespan of an inverter battery typically ranges from 3 to 5 years, depending on the type, usage patterns, and maintenance. Factors such as regular water top-ups (for lead-acid batteries), avoiding deep discharges, and ensuring proper ventilation can significantly extend battery life.

What is the difference between lead-acid and lithium-ion inverter batteries?
Lead-acid batteries are cost-effective and widely used but require regular maintenance and have a shorter lifespan. In contrast, lithium-ion batteries are more efficient, have a longer life span, and require minimal maintenance, although they come with a higher initial cost.

How can I increase the lifespan of my inverter battery?
You can extend the lifespan of your inverter battery by ensuring regular maintenance, avoiding overcharging or deep discharging, keeping terminals clean, and placing the battery in a well-ventilated area. Using compatible inverters and performing periodic performance checks also helps.

Can an inverter battery be used without a solar system?
Yes, an inverter battery can function without a solar system. It charges using grid electricity and supplies backup power during outages. However, integrating a solar system enhances efficiency, reduces electricity costs, and makes the setup more sustainable.

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