Published Apr 21, 2026 · 3 min read

Inverter batteries - Overview

Inverter batteries are rechargeable power storage units that supply electricity during power cuts by working with an inverter to run essential home or office appliances. People look for them to ensure uninterrupted backup, better energy efficiency, and reliable performance. The main types include flat plate batteries, which offer quick charging and are budget-friendly, and tubular batteries, known for longer backup and higher durability, making them suitable for frequent and heavy usage. You can now make your purchase even more affordable by combining brand discounts, dealer offers, and EMI options—all in one place to save more and shop smarter with better value. Explore inverters at any of Bajaj Finserv’s 1.5 lakh partner stores in 4,000 cities in India. Choose your ideal model, pay with Easy EMIs, and enjoy zero down payment on select deals. Simply check your loan eligibility now and bring home your desired product without worrying about overspending.

What are flat plate batteries?

Flat plate batteries are a type of lead-acid inverter battery designed with flat, rectangular lead plates that store and deliver electrical energy efficiently. They are commonly used for short to medium power backup needs in homes and small offices. These batteries are known for quick charging, compact design, and affordability, making them a popular choice for basic inverter setups.


  • Home inverter backup: Used to power essential appliances like fans, lights, and TVs during power cuts
  • Small office use: Suitable for running basic equipment such as computers and routers
  • Quick charging applications: Ideal where frequent charging and short backup cycles are needed
  • Budget-friendly power solution: Preferred for users looking for cost-effective backup options
  • Low maintenance usage: Easy to maintain compared to advanced battery types
  • Light to moderate load support: Best suited for areas with short or infrequent power outages

What are tubular batteries?

Tubular batteries are advanced lead-acid inverter batteries designed with tall, tubular-shaped plates that hold more electrolyte, allowing them to deliver longer backup and better durability. They are widely used for heavy-duty and long-duration power backup needs in homes, offices, and commercial spaces. Compared to flat plate batteries, they are more efficient for frequent power cuts and long usage cycles.
 

  • Home inverter backup: Provides long-lasting power for fans, lights, TVs, and other essential appliances
  • Office and commercial use: Suitable for computers, routers, and equipment requiring continuous power supply
  • Long power outage areas: Ideal for regions with frequent and extended electricity cuts
  • Heavy load support: Can handle higher energy demands compared to flat plate batteries
  • Solar power systems: Commonly used in solar setups for efficient energy storage
  • Durability-focused usage: Built for longer lifespan and repeated deep discharge cycles, making them reliable for long-term use

Difference between tubular and flat battery

Flat plate batteries are budget-friendly and suitable for short backup needs, while tubular batteries are designed for longer life and heavy-duty power backup applications.

 

FeatureFlat Plate BatteryTubular Battery
DesignFlat, rectangular lead platesTubular (cylindrical) positive plates
Backup timeShort to medium durationLong duration backup
LifespanAround 2–4 yearsAround 4–6 years or more
Charging speedFaster chargingSlightly slower charging
CostMore affordableHigher initial cost
MaintenanceModerate maintenanceLow maintenance
Best useSmall homes, light load usageHomes, offices, heavy load usage
Deep discharge handlingNot idealExcellent performance
DurabilityModerateHigh durability and longer life

Tubular batteries are generally preferred for frequent power cuts due to better durability, while flat plate batteries are best for users looking for a budget-friendly, short-term solution.

Get electronics and appliances on Easy EMIs with Bajaj Finserv

Upgrading your home with the latest electronics and appliances is now easier and more affordable with Bajaj Finserv’s flexible financing options. You can also maximise your savings by using the Maha Bachat Savings Calculator—a smart tool that combines brand offers, dealer offers, and EMI offers, all in one place, helping you lower the overall cost while still paying in small, bite-sized instalments. Follow these steps to get started:


  • Explore products on Bajaj Mall: Browse a wide range of electronics and appliances from trusted brands. Compare features like energy ratings, storage capacity, performance settings, and design to choose the right product for your home.
  • Visit a partner store: Once you shortlist a model, step into any of Bajaj Finserv’s 1.5 lakh partner stores across 4,000 cities in India. See the product in person, talk to experts, and make a confident decision.
  • Choose the Easy EMI Loan option: At checkout, select the Bajaj Finserv Easy EMI Loan. Avail financing of up to Rs. 5 lakh and split the cost into convenient monthly instalments. Some products also come with a zero down payment option.
  • Check your loan eligibility online: Plan better by checking your loan eligibility in minutes. Simply enter your mobile number and OTP to know your pre-approved limit.
  • Use the EMI Network Card for purchases up to Rs. 3 lakh: Already own the Bajaj Finserv EMI Network Card? Use it for instant, paperless checkout and convert your purchases of up to Rs. 3 lakh into Easy EMIs.

Why use the Maha Bachat Savings Calculator

Bajaj Finserv’s Maha Bachat Savings Calculator helps you unlock maximum savings every time you shop at partner stores. It brings together all available brand, dealer, and scheme offers—so you can see your total savings instantly and shop smarter with Easy EMIs. 
 

  1. Dealer offers - Grab exclusive in-store deals at over 1.5 lakh partner stores across India. Enjoy local discounts and special prices you will not find online. 
  2. Brand offers - Access limited-time discounts from top brands across electronics, appliances, and more. Discover brand-specific savings selected just for you. 
  3. Bajaj offers - Unlock exclusive Bajaj Finserv deals on popular products—available only to our customers. More rewards, more value. 
  4. Scheme offers - Take advantage of time-sensitive offers on select EMI schemes. Get extra benefits after paying just 3 EMIs—visible during EMI selection at checkout.

Calculate your extra savings now!

Frequently asked questions

Can I buy an inverter on EMI?

Yes, you can easily bring home your preferred inverter using Bajaj Finserv’s Easy EMI options. Whether you already have the EMI Network Card or are new to it, here is how to begin:
 

If you have the Bajaj Finserv EMI Network Card:

  • Explore inverter on Bajaj Mall: Choose from a wide range of reliable inverters designed for home and small office backup needs
  • Visit a partner store: Check out the product in person at any of Bajaj Finserv’s 1.5 lakh partner stores across 4,000 cities in India.
  • Use your EMI Network Card at checkout: Convert the cost into Easy EMIs that fit your monthly budget.
  • Zero down payment on select models: Take your chosen exhaust fan home without paying anything upfront.
     

If you do not have an EMI Network Card:

Check your Insta EMI Card eligibility online using your mobile number and OTP. If you are eligible, apply instantly and enjoy a smarter, more affordable way to buy your inverter on Easy EMIs.

Can I use a tubular battery with a normal inverter?

Yes, tubular batteries can be used with most normal home inverters as they are compatible with standard inverter systems. They may take slightly longer to charge, but they provide better backup time and durability compared to flat plate batteries, making them suitable for regular household use.

Which battery is safer for indoor use?

Both flat plate and tubular batteries are safe for indoor use if properly maintained and installed in a ventilated area. However, sealed or low-maintenance tubular batteries are often preferred for homes because they emit fewer gases and offer better long-term reliability during continuous usage.

Does a flat plate battery charge faster than a tubular one?

Yes, flat plate batteries generally charge faster than tubular batteries because they have simpler plate design and lower electrolyte capacity. However, tubular batteries charge more slowly but store energy more efficiently, offering longer backup duration and better performance during frequent power cuts or heavy usage.

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