How much does a solar battery cost in India in 2026? A 5kWh lithium battery typically costs around ₹1 lakh–₹2.5 lakh, depending on battery chemistry, brand, voltage, BMS, warranty and whether the price includes installation or a hybrid inverter. A 10kWh lithium storage system can cost roughly ₹2 lakh–₹5 lakh, while a 15kWh system can reach approximately ₹3 lakh–₹7 lakh or more.
Tubular lead-acid batteries are much cheaper upfront, but they have lower usable depth of discharge, require more maintenance and generally have shorter cycle life than modern LiFePO4 batteries.
The most important point is this:
Do not compare solar batteries only by Ah or sticker price. Compare usable kWh, chemistry, cycle life, warranty and total installed cost.
This guide explains 5kWh, 10kWh and 15kWh solar battery prices in India, lithium vs tubular batteries, backup calculations, battery sizing and four battery products you can consider.
Quick Answer: Solar Battery Price in India 2026
| Battery storage | Lithium/LFP indicative cost | Tubular lead-acid indicative cost | Typical application |
|---|---|---|---|
| 5kWh | ₹1.25–₹2.50 lakh | ₹45,000–₹65,000* | Essential home backup |
| 10kWh | ₹2.50–₹5.00 lakh | ₹95,000–₹1.30 lakh* | Larger home / extended backup |
| 15kWh | ₹3.75–₹7.00 lakh+ | Usually impractical as a simple bank | Large home / high-load backup |
*Lead-acid figures are indicative and depend heavily on the number and capacity of batteries required. Prices can also change significantly depending on whether inverter, cabling, installation and protection equipment are included.
Recent Indian market references show 5kWh LFP storage around ₹1.8–₹2.5 lakh installed and 10kWh systems around ₹3.5–₹4.8 lakh, while another 2026 market guide places LFP installed systems around ₹25,000–₹35,000 per kWh.
1. What Is a Solar Battery?
A solar battery stores electricity so that it can be used later.
For a rooftop solar system, the battery can store excess solar energy generated during the day and make that energy available during:
- Evening hours
- Night-time
- Power cuts
- Low-solar periods
- Selected backup loads
A battery becomes particularly useful when your main objective is backup power or increasing solar self-consumption.
However, a battery is not automatically necessary for every rooftop solar installation.
If your home has reliable grid electricity and you have an appropriate grid-connected solar system, an on-grid system without a battery can have a lower initial cost.
2. What Does 5kWh Mean?
A 5kWh battery has approximately 5 kilowatt-hours of nominal energy storage.
For example:
- 500W load × 10 hours = 5kWh
- 1,000W load × 5 hours = 5kWh
- 2,000W load × 2.5 hours = 5kWh
But this does not mean a 5kWh battery will always deliver exactly 5kWh to your appliances.
Actual usable energy depends on:
- Depth of discharge
- Battery chemistry
- Inverter efficiency
- Battery temperature
- Battery age
- BMS limits
- Maximum discharge power
This is why usable kWh is more useful than simply looking at nominal capacity.
3. 5kWh Solar Battery Price in India
A 5kWh battery is one of the most practical storage sizes for a home.
Indicative 2026 price
Lithium/LFP: approximately ₹1.25 lakh–₹2.50 lakh depending on the battery and installation configuration.
A premium branded battery with an integrated BMS, communication interface, long warranty and higher cycle life can cost more.
What can a 5kWh battery run?
A properly sized 5kWh system can potentially support essential loads such as:
- LED lights
- Ceiling fans
- Wi-Fi router
- Television
- Refrigerator
- Computers
- Selected small appliances
It is not automatically enough to run an entire home for an entire night.
For example, if your actual backup load is 1,000W, a 5kWh nominal battery may provide several hours of useful backup after accounting for usable capacity and inverter losses.
If your load rises to 2,500W, the same battery will be depleted much faster.
4. 10kWh Solar Battery Price in India
A 10kWh battery is aimed at households that need significantly more backup energy.
Indicative 2026 price
Lithium/LFP: approximately ₹2.5 lakh–₹5 lakh for a battery/storage system, depending on configuration.
A 10kWh battery may be suitable for:
- Larger homes
- Multiple refrigerators
- Larger evening loads
- Longer power cuts
- Selected air-conditioning loads
- Small offices
- Shops
- Solar self-consumption
A 10kWh battery does not necessarily mean that every appliance can run simultaneously.
You must check both:
Energy capacity: kWh
and
Power capability: kW
These are different specifications.
5. 15kWh Solar Battery Price in India
A 15kWh battery is a substantially larger energy-storage system.
Indicative 2026 price
Lithium/LFP: approximately ₹3.75 lakh–₹7 lakh or more.
The final price depends heavily on:
- Battery voltage
- Number of battery modules
- BMS
- Inverter compatibility
- Installation
- Protection equipment
- Communication system
- Warranty
- Brand
- Expandability
A 15kWh system can be appropriate for a large home, high backup requirement or small commercial application.
For most ordinary homes, however, 15kWh is not automatically the most economical choice.
The battery should be sized from actual energy consumption rather than from the desire to have the largest possible storage system.
6. Lithium vs Tubular Solar Battery
The two major choices for Indian home backup are traditional tubular lead-acid and lithium batteries, particularly LiFePO4/LFP.
| Feature | Tubular Lead-Acid | Lithium/LFP |
|---|---|---|
| Initial price | Lower | Higher |
| Energy density | Lower | Higher |
| Weight | Heavy | Much lighter |
| Maintenance | Water topping generally required | Very low |
| Usable depth | Lower | Higher |
| Charging | Slower | Generally faster |
| Cycle life | Lower | Higher |
| Space required | More | Less |
| BMS | Usually no advanced BMS | Yes |
| Long-term use | Good for occasional backup | Better suited to frequent cycling |
| Upfront investment | Lower | Higher |
Current Indian market references show tubular batteries remain inexpensive, while LFP batteries command a much higher price but offer higher usable capacity and longer cycle life.
7. Why Ah Is Not Enough to Compare Batteries
This is one of the biggest mistakes buyers make.
A battery may be advertised as:
100Ah
But you need to know the voltage.
For example:
12.8V × 100Ah = 1.28kWh
whereas:
51.2V × 100Ah = 5.12kWh
Both batteries are rated at 100Ah, but their energy storage is completely different.
Therefore:
Always ask for the battery’s kWh capacity, not just Ah.
For solar storage, comparing batteries by usable kWh is even better.
8. 5kWh vs 10kWh vs 15kWh: Which One Should You Buy?
| Storage | Best suited for | Typical objective |
|---|---|---|
| 5kWh | Small/medium home | Essential backup |
| 10kWh | Large home | Extended backup |
| 15kWh | Large home/business | High energy backup |
Choose 5kWh when you mainly want lights, fans, refrigerator, Wi-Fi and essential appliances during outages.
Choose 10kWh when your evening electricity consumption is substantially higher and you need longer backup.
Choose 15kWh when your measured energy requirement justifies the additional investment.
Do not buy a 15kWh battery simply because it provides more backup.
The additional capacity costs money and may remain unused for much of the year.
9. How to Calculate the Battery Size You Need
Use this simple method:
Step 1: List the appliances
For example:
| Appliance | Power | Quantity | Hours |
|---|---|---|---|
| Fan | 70W | 3 | 6 |
| Lights | 10W | 6 | 6 |
| TV | 100W | 1 | 4 |
| Refrigerator | 150W average* | 1 | 8 |
| Wi-Fi | 15W | 1 | 8 |
Calculate the approximate energy consumed during the backup period.
Step 2: Add a practical reserve
Do not size a battery exactly to your calculated load.
Account for:
- Inverter losses
- Battery usable capacity
- Temperature
- Battery ageing
- Unexpected loads
Step 3: Check inverter compatibility
A battery with adequate kWh capacity can still be unsuitable if the inverter does not support:
- Its voltage
- Battery chemistry
- Communication protocol
- Maximum charging current
- Maximum discharge current
This is particularly important with lithium batteries.
10. How Much Backup Does a 5kWh Battery Provide?
There is no single answer because backup time depends on the load.
A simplified calculation is:
Backup time ≈ usable battery energy ÷ average load
For example, if a battery provides 4.5kWh of usable energy:
- 500W load → approximately 9 hours
- 1,000W load → approximately 4.5 hours
- 1,500W load → approximately 3 hours
- 2,000W load → approximately 2.25 hours
Real-world backup will differ because of inverter losses, battery limits and changes in appliance consumption.
Therefore, never accept an installer statement such as “this battery gives 10 hours backup” without asking:
At what load?
11. Does PM Surya Ghar Subsidy Cover Solar Batteries?
This is an important point.
The central PM Surya Ghar residential subsidy is structured around eligible rooftop solar capacity. The standard CFA is ₹30,000 for 1kW, ₹60,000 for 2kW and ₹78,000 for 3kW or higher under the published scheme structure.
Do not treat the ₹78,000 amount as a ₹78,000 battery subsidy.
The battery is an additional storage component, and you should ask the installer to show separately:
- Solar panel cost
- Inverter cost
- Battery cost
- Mounting structure
- Installation
- Protection equipment
- Applicable taxes
- Subsidy/CFA
- Final customer payment
This prevents a common problem where a vendor advertises a “solar system after subsidy” without clearly explaining how much of the quoted amount is actually attributable to the battery.
12. Solar Battery vs On-Grid Solar Without Battery
Do you actually need a battery?
Choose on-grid solar without battery when:
- Grid electricity is reliable.
- Your main goal is reducing electricity bills.
- You are comfortable without backup during outages.
- You want lower initial investment.
Consider battery storage when:
- Power cuts are frequent.
- Backup electricity is important.
- You want to use more of your solar energy after sunset.
- You have critical loads.
- You want greater energy independence.
Battery storage is primarily an energy-storage and backup investment.
It should not automatically be marketed as a way to achieve faster solar payback.
13. Recommended Solar Batteries to Compare
Below are four products you can consider when researching battery options.
1. Okaya Solar ST 075S – 75Ah Tubular Battery
The Okaya Solar ST 075S is a traditional tubular lead-acid battery aimed at inverter/solar backup applications.
It is a much smaller storage unit than a 5kWh lithium battery, so it should not be directly compared with a 5kWh LFP pack simply by price.
Its main advantage is the lower upfront cost.
Check Okaya Solar ST 075S on Amazon
2. Luminous Solar Battery
Luminous offers multiple tubular solar/inverter battery capacities, including 100Ah, 150Ah and 200Ah models. Its official product range currently lists different capacities and warranty periods.
A Luminous tubular battery can make sense when the priority is conventional backup at a lower initial price.
Check Luminous Solar Battery on Amazon
3. Microtek Lithium-Ion Battery
Microtek’s lithium battery range includes higher-voltage LiFePO4 storage products. A current 51.2V/100Ah Microtek lithium battery listing corresponds to approximately 5.12kWh nominal energy capacity.
That makes this type of battery much closer to the 5kWh storage category than a conventional 12V tubular battery.
Check Microtek Lithium-Ion Battery on Amazon
4. Loom Solar 25.6V Lithium Inverter Battery
Loom Solar offers lithium inverter batteries designed for solar/inverter applications. The important specification to check is the combination of voltage and Ah rather than looking at Ah alone.
Check Loom Solar 25.6V Lithium Inverter Battery on Amazon
14. Our Practical Buying Recommendation
There is no single “best solar battery” for every Indian home.
For occasional power cuts:
A good tubular battery can be economically sensible.
For frequent power cuts:
A lithium/LFP battery becomes more attractive because of its lower maintenance and higher usable capacity.
For daily battery cycling:
Compare the 10-year ownership cost, not just the purchase price.
For a new rooftop solar installation:
If backup is important, compare a properly matched hybrid inverter + LFP battery system against an ordinary on-grid system.
The cheapest battery is not necessarily the cheapest battery to own.
15. What Should You Check Before Buying a Lithium Battery?
Before placing an order, ask the seller for:
- Nominal voltage
- Nominal capacity in kWh
- Usable capacity
- Battery chemistry
- Maximum continuous discharge power
- Maximum charging current
- BMS specifications
- Cycle-life rating
- Warranty period
- Inverter compatibility
- Communication protocol
- Operating temperature
- Installation requirements
- Service availability
- Replacement procedure
Most importantly, confirm whether the quoted warranty is product replacement, repair, pro-rata or another warranty structure.
16. What Should You Check Before Buying a Tubular Battery?
For a tubular lead-acid battery, check:
- Ah rating
- C10/C20 rating
- Warranty
- Replacement warranty
- Pro-rata warranty
- Expected cycle life
- Water requirement
- Battery dimensions
- Weight
- Terminal configuration
- Recommended inverter
- Installation requirements
A 150Ah battery from one manufacturer is not automatically equivalent to every other 150Ah battery.
17. Hidden Costs Buyers Should Watch
The battery price displayed online may not represent the final installed cost.
Ask whether the quotation includes:
- Hybrid inverter
- Battery rack
- DC cables
- AC cables
- DC isolator
- Fuses
- Surge protection
- Earthing
- Installation
- Transportation
- Configuration
- BMS communication cable
- Monitoring device
- GST
- Old battery exchange
- Service visits
A ₹1.5 lakh battery can become a significantly more expensive storage system after the inverter and installation are added.
18. Should You Buy a 5kWh, 10kWh or 15kWh Battery?
Buy 5kWh if:
Your priority is essential-load backup and you want to control the initial investment.
Buy 10kWh if:
Your household has higher evening consumption and you regularly experience long power cuts.
Buy 15kWh if:
You have measured a genuinely high energy requirement and the additional storage will be used frequently.
For most households, 5kWh is the sensible starting point.
Start with your actual electricity consumption rather than choosing battery capacity based on the size of your solar panels.
Frequently Asked Questions
What is the price of a 5kWh solar battery in India in 2026?
A 5kWh lithium/LFP battery or storage system can typically cost approximately ₹1.25 lakh–₹2.50 lakh depending on the battery, brand, inverter compatibility and installation. Market references also report approximately ₹1.8–₹2.5 lakh for installed 5kWh lithium storage.
What is the price of a 10kWh solar battery in India?
A 10kWh lithium storage system can cost approximately ₹2.5 lakh–₹5 lakh depending on configuration. Premium batteries, hybrid inverters and installation can increase the total.
What is the price of a 15kWh solar battery?
A 15kWh lithium system can cost approximately ₹3.75 lakh–₹7 lakh or more. The final price depends on battery modules, inverter, installation, warranty and brand.
Which is better: lithium or tubular battery?
Lithium/LFP is generally better for frequent cycling, low maintenance, compact installation and higher usable capacity. Tubular lead-acid is cheaper initially and can be suitable for conventional home backup.
Is a 5kWh battery enough for a house?
It can be enough for essential loads, but it depends entirely on the home’s power consumption. A 5kWh battery cannot be assumed to run every appliance for an entire night.
How long will a 5kWh battery last?
Battery lifespan depends on chemistry, temperature, depth of discharge, charging conditions and cycling frequency. Modern LFP home batteries can have substantially longer cycle life than conventional lead-acid batteries, but the manufacturer’s actual warranty and cycle specification should be checked before purchase.
Can I add a battery to my existing on-grid solar system?
Sometimes, but not automatically. The inverter must support the required battery architecture, or the system may need an inverter replacement or AC-coupled storage solution. Get a compatibility assessment before purchasing the battery.
Does PM Surya Ghar give ₹78,000 subsidy for a solar battery?
No. The standard ₹78,000 central residential CFA is associated with eligible rooftop solar capacity of 3kW or above, not a standalone ₹78,000 battery subsidy.
What is more important: Ah or kWh?
For comparing different battery voltages, kWh is more useful. Ah must always be considered together with voltage.
Is a lithium battery worth the extra money?
For frequent cycling and long-term use, lithium can make economic sense because of its higher usable capacity, lower maintenance and longer cycle life. For occasional backup, a tubular battery may provide a lower-cost entry point.
Final Verdict: Which Solar Battery Should You Buy?
If your goal is simply low-cost backup, start by comparing good-quality tubular batteries.
If your goal is daily solar storage, frequent cycling, low maintenance and compact installation, look seriously at LiFePO4/LFP.
For most homes considering modern solar storage, 5kWh is the logical starting point. Move to 10kWh or 15kWh only after calculating your actual evening/night energy requirement.
The most important buying rule is simple:
Compare usable kWh + inverter compatibility + warranty + cycle life + total installed cost—not just the battery’s Ah rating or advertised price.
Recommended next step
Before buying, calculate your actual backup requirement from your appliances and desired backup hours. A properly sized 5kWh system can be better value than an oversized 10kWh or 15kWh battery that remains underused.
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