Key takeaway
Lithium iron phosphate (LFP) batteries cost ₹20,000–₹35,000 per kWh in India in 2026, appearing expensive upfront versus lead-acid at ₹8,000–₹15,000/kWh. But with 4,000+ cycles versus 500–800 for lead-acid (typical datasheet figures, so check each model), LFP delivers a lower cost per kWh stored over a 10-year period, by roughly 60% in the illustrative example below. The price ranges here are planning figures, not quotes.
The Battery Decision That Most Solar Buyers Get Wrong
When a customer asks about adding a battery to their solar system, the conversation usually starts with purchase price. Lead-acid batteries appear dramatically cheaper. A 10 kWh lead-acid bank costs ₹80,000–₹1,50,000; a 10 kWh LFP bank costs ₹2,00,000–₹3,50,000. The price gap looks decisive.
But battery economics are driven by lifetime cost, not purchase cost. A lead-acid battery that delivers 600 charge cycles and needs replacing every 3–4 years costs far more over 10 years than an LFP battery completing 4,000+ cycles with the same pack. In the illustrative example below, the buyer who decides on sticker price alone pays far more in total over a decade.
This guide covers 2026 prices for both technologies, the complete lifetime cost calculation using the Battery Cost-of-Ownership Formula, sizing methodology for off-grid and hybrid systems, top brands available in India, and what the MNRE PM Surya Ghar guidelines say about adding a battery.
For context on the broader system cost, see our guides on 3 kW system pricing, 5 kW system pricing, and solar inverter prices.
Lithium Iron Phosphate (LFP) Battery Prices in India 2026
LFP batteries are the dominant lithium chemistry for solar storage in India. Compared to NMC (nickel manganese cobalt) chemistry used in EVs, LFP has lower energy density but is significantly safer, more thermally stable, and delivers more cycles, making it the preferred choice for stationary solar storage. For a closer technical look at how LFP stacks up against NMC chemistry, installers evaluating both options for a stationary install can weigh the safety and cycle-life tradeoffs directly.
| Capacity | Price Range (₹) | ₹/kWh | Best For |
|---|---|---|---|
| 2.4 kWh (wall-mount) | 55,000–85,000 | 23,000–35,000 | Small backup, 1–2 essential loads |
| 5 kWh | 1,00,000–1,75,000 | 20,000–35,000 | 3 kW solar + partial overnight backup |
| 10 kWh | 2,00,000–3,50,000 | 20,000–35,000 | 5–10 kW solar, full overnight backup |
| 15 kWh | 3,00,000–5,00,000 | 20,000–33,000 | 10 kW solar, off-grid or deep backup |
| 20 kWh (stackable) | 3,80,000–6,50,000 | 19,000–32,500 | Commercial off-grid, large residential |
These are indicative planning ranges, not published price lists, and they change often. For one dated reference point, Loom Solar's own online store listed its 5.12 kWh wall-mount LFP battery at ₹1,15,000 and its 10.24 kWh wall-mount LFP battery at ₹2,30,000 on 31 Oct 2026 (loomsolar.com; listed price, confirm GST). Always get a current written quote before you price a customer proposal.
Tip
LFP battery prices have generally trended down in recent years, but the size and pace of any fall depends on the brand and the quote date. Buyers waiting for prices to fall further are rational, but grid reliability concerns often accelerate the purchase decision.
Lead-Acid Battery Prices, VRLA and Tubular
Lead-acid batteries remain widely used for solar storage in cost-sensitive markets, particularly for off-grid rural applications, small shops, and existing inverter-backup setups being upgraded with solar.
| Type | Capacity | Price Range (₹) | ₹/kWh | Cycle Life |
|---|---|---|---|---|
| Sealed VRLA (AGM) | 100 Ah / 1.2 kWh | 8,000–14,000 | 6,600–11,600 | 300–500 |
| Tall Tubular (flooded) | 150 Ah / 1.8 kWh | 12,000–20,000 | 6,600–11,000 | 500–800 |
| Tubular (200 Ah) | 200 Ah / 2.4 kWh | 16,000–26,000 | 6,600–10,800 | 600–900 |
| Solar tubular bank (10 kWh) | 5–6 × 200 Ah batteries | 80,000–1,56,000 | 8,000–15,600 | 600–900 |
Note that lead-acid cycle life assumes cycling to 50% Depth of Discharge (DoD). Deeper cycling, common in off-grid applications, dramatically reduces cycle count and accelerates replacement needs.
Cycle Life Comparison, Why the Numbers Matter So Much
Cycle figures are typical manufacturer datasheet values and vary by model, temperature and depth of discharge. Check the warranty document of the exact battery you quote.
Most solar battery installations cycle once per day, charge during solar generation hours, discharge in the evening and overnight. At this rate, an LFP battery lasts 10–12 years before significant capacity degradation. A lead-acid battery lasts 1.5–3 years at the same cycling intensity before replacement is warranted. This is why cycle life directly determines how many years a bank lasts far more than the purchase price alone.
This means a homeowner installing a 10 kWh lead-acid bank today will need to replace it 3–4 times before the LFP buyer needs their first replacement, and each replacement costs nearly as much as the original purchase.
The Battery Cost-of-Ownership Formula
This framework converts upfront sticker prices into a meaningful 10-year comparison that any customer can understand.
Formula:
Lifetime cost per kWh = (Purchase price + Replacement cost over 10 yrs + Efficiency loss value) ÷ Total usable kWh delivered over 10 years
Illustrative example. The prices, replacement years and efficiency figures below are assumptions for this worked calculation, not market data.
LFP example (10 kWh battery, ₹2,80,000 purchase price):
- Replacements needed in 10 years: 0 (LFP lasts 10+ years)
- Total replacement cost: ₹0
- Efficiency: ~95% round-trip; loss value over 10 years: ~₹15,000
- Total usable kWh: 10 kWh × 0.8 DoD × 365 days × 10 years = 29,200 kWh
- Lifetime cost per kWh stored: (₹2,80,000 + ₹0 + ₹15,000) ÷ 29,200 = ₹10.1/kWh
Lead-acid example (10 kWh bank, ₹1,10,000 purchase price):
- Replacements needed in 10 years: 3 (at Years 2.5, 5, 7.5) × ₹1,10,000 = ₹3,30,000
- Total spent over 10 years: ₹1,10,000 + ₹3,30,000 = ₹4,40,000
- Efficiency: ~75–80% round-trip; loss value over 10 years: ~₹40,000
- Usable kWh: 10 kWh × 0.5 DoD × 365 days × 10 years = 18,250 kWh (50% DoD)
- Lifetime cost per kWh stored: (₹4,40,000 + ₹40,000) ÷ 18,250 = ₹26.3/kWh
LFP wins by ₹16.2/kWh stored, a 62% cost advantage over 10 years. The formula makes this concrete for any customer.
Money
For a customer hesitating between LFP and lead-acid on upfront cost, run this formula with their specific numbers in your proposal. In the illustrative example above, a ₹1,70,000 difference at purchase becomes a saving of roughly ₹1,85,000 over 10 years in favour of LFP. Your numbers will differ, so use real quotes.
Top Battery Brands in India 2026, Pricing and Comparison
| Brand | Chemistry | 5 kWh Price (₹) | 10 kWh Price (₹) | Warranty | Availability |
|---|---|---|---|---|---|
| Luminous | LFP + Tubular LA | 1,10,000–1,50,000 | 2,10,000–2,90,000 | 3–5 yr LFP | Pan-India, excellent |
| Exide | LFP + Tubular LA | 1,05,000–1,45,000 | 2,00,000–2,80,000 | 3–5 yr LFP | Pan-India, excellent |
| Amara Raja (Amaron) | Tubular LA + LFP (emerging) | 95,000–1,30,000 | 1,80,000–2,50,000 | 3 yr | Pan-India, good |
| Loom Solar | LFP | 1,00,000–1,40,000 | 1,90,000–2,70,000 | 5 yr | Online + distributors |
| Nexgen / Jakson | LFP | 1,15,000–1,60,000 | 2,20,000–3,10,000 | 5 yr | Tier-1 cities, growing |
Brand figures are indicative ranges for comparison, not quotes from these companies. Get current prices and the written warranty terms from each brand or its distributor before you quote.
Note
Chinese brands (BYD, CATL OEM products) are available through import channels at lower per-kWh costs, but after-sales service, warranty enforcement, and compatibility with ALMM-listed hybrid inverters must be carefully verified before specifying them in a customer installation.
PM Surya Ghar and Battery Systems, What the Scheme Covers
This is a frequent point of confusion among both installers and customers. Under the MNRE guidelines for PM Surya Ghar: Muft Bijli Yojana (amended July 2025), a grid-connected rooftop system can include a battery and still get the subsidy. Clause 5(l) says the installation "may include additional technology components such as small wind hybrids, battery storage, solar tracker systems etc.", but the central financial assistance (CFA) is calculated on the capacity of the solar modules only. Clause 6(o) says battery hybrid systems that stay connected to the grid are eligible for CFA, subject to approval by the State Electricity Regulatory Commission, and the DISCOM checks the reverse power relay protection at inspection. Off-grid installations are not eligible. (Checked 31 Oct 2026 against the MNRE guidelines PDF.)
In practice this means:
- The subsidy is worked out on the rated DC capacity of the modules, at the standard rates (₹30,000/kW for the first 2 kW, ₹18,000/kW for the third kW, capped at ₹78,000 for 3 kW and above). The battery adds nothing to the subsidy and takes nothing away.
- The battery cost is not subsidised, so quote it as a separate line.
- Confirm your State Commission's approval position and your DISCOM's process for battery hybrid systems before you promise anything in writing, because clause 6(o) makes eligibility subject to that approval.
The guidelines we read do not say what happens if a battery is added after the subsidy is paid. Ask your DISCOM before retrofitting. Learn more about subsidy eligibility and calculation.
Warning
Do not tell customers a battery voids the subsidy, and do not promise the subsidy for a fully off-grid system. Off-grid installations are not eligible; grid-connected battery hybrids are, subject to your State Commission's approval and the DISCOM inspection under clause 6(o). Put the clause reference in your proposal.
Off-Grid System Sizing, How to Calculate Battery Capacity
For rural, remote, and partially off-grid installations, battery sizing is the most important technical decision. The formula below is the standard methodology, and it applies regardless of which configuration the customer settles on after choosing between on-grid, off-grid, and hybrid configurations.
LFP vs Lead-Acid, Comprehensive Pros and Cons
LFP PROS vs LEAD-ACID
- 4,000+ cycles vs 500–800, lasts several times longer
- Lower 10-year cost in the illustrative ownership formula
- 80% usable DoD vs 50%, more usable energy per kWh installed
- No topping up, no acid spills, no ventilation requirement
- 75–85% lighter per kWh, easier roof/wall installation
- Built-in BMS protects against overcharge, deep discharge
LFP CONS vs LEAD-ACID
- 2–3× higher purchase price (₹20,000–₹35,000/kWh vs ₹8,000–₹15,000)
- Requires compatible BMS and inverter/charger, not always plug-and-play
- Fewer local service technicians familiar with LFP in tier-3 markets
- Import-dependent components mean supply chain risk
- Warranty enforcement harder with some emerging brands
How Quickest Solar CRM Helps You Sell Battery Add-Ons
Battery proposals are where many installers lose customers, the upfront cost sticker-shock kills the conversation before the lifetime cost analysis can land. For a residential quote-attachment playbook for battery upsells, the sequencing of when and how the battery option appears in the proposal matters as much as the pricing itself. Quickest Solar CRM's proposal tools can help with the proposal side.
- Proposal Generator, Build a branded battery add-on proposal PDF with your logo, items, photos and terms, and share it on the customer's WhatsApp. Add your own LFP vs lead-acid comparison to the terms or items yourself.
- Quotation System, Price battery options by brand and capacity from your admin-set price list with your margin applied, and itemise everything from the battery unit to the inverter, cabling and civil work for customer sign-off. Work out your GST treatment with your CA.
- WhatsApp Follow-up, Battery decisions can take weeks of deliberation. Use saved message templates and follow-up reminders on the lead so you remember to message the customer while they decide.
See how solar teams manage battery leads alongside PV projects at solar lead management in India and how to build a professional battery proposal pipeline at best solar CRM software in India.
Book a demo to see battery proposal generation in action.
Start Converting Battery Enquiries into Signed Orders
Backup power is a growing question from customers, and battery is an active category, not just an occasional upsell. Installers who want the fuller picture of the broader storage business opportunity should treat battery attach rate as a core revenue lever, not an afterthought.
Installers who can show the 10-year cost-of-ownership comparison quickly, explain the PM Surya Ghar rules clearly, and deliver a professional proposal the same day as the enquiry will win a disproportionate share of this growing market.
Run the Battery Cost-of-Ownership Formula in every battery conversation. Present LFP and lead-acid honestly. Explain the subsidy rules correctly. And use the solar cost per watt guide and solar panel price trends post to give customers the full picture of a system investment.
Frequently Asked Questions
Q1. What is the price of a lithium solar battery in India in 2026? LFP lithium solar batteries cost ₹20,000–₹35,000 per kWh in India in 2026. A 10 kWh LFP battery bank costs approximately ₹2,00,000–₹3,50,000 including installation.
Q2. Are solar batteries eligible for PM Surya Ghar subsidy? A grid-connected system with a battery can still get the subsidy under MNRE guidelines clauses 5(l) and 6(o) (July 2025), but the subsidy is calculated on solar module capacity only and the battery itself is not subsidised. Off-grid systems are not eligible. Battery hybrids need the State Commission's approval.
Q3. How long does a lithium solar battery last in India? LFP batteries are typically rated for 4,000+ cycles on manufacturer datasheets, which is 10–12 years at one cycle per day if the rating holds. Check the warranty of the exact model. Lead-acid batteries cycling daily last 1.5–3 years.
Q4. Is LFP battery cheaper than lead-acid over 10 years? Yes, significantly. In the illustrative worked example (assumed prices, not market data), LFP delivers stored energy at approximately ₹10/kWh versus ₹26/kWh for lead-acid over 10 years, despite the higher purchase price. Run it with real quotes.
Q5. Which battery brand is best for solar in India? There is no single best brand. Compare the written warranty, the service network in your customer's town, and inverter compatibility for each brand you quote, and get current prices from the brand or distributor.
Q6. How much battery capacity do I need for a 5 kW solar system? For overnight backup of a typical home consuming 15–20 kWh/day: a 10 kWh LFP bank covers 8–10 hours of moderate consumption. Off-grid systems needing 2-day autonomy should plan for 15–20 kWh of LFP capacity.
Q7. What is the difference between VRLA and tubular lead-acid batteries? VRLA (valve-regulated lead acid) is sealed and maintenance-free, suited for indoor use. Tubular (flooded) batteries need periodic water topping and ventilation but offer longer cycle life and are more cost-effective for solar applications.
Q8. Can I add a battery to my existing on-grid solar system? Yes, technically. You can add a separate off-grid inverter and battery alongside the grid-tied system, or swap to a hybrid inverter. The MNRE guidelines we read do not say what happens to the subsidy if a battery is added later, so ask your DISCOM before modifying a subsidy-registered system.
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