MuscleGrid lithium (LiFePO4) batteries deliver long cycle life, built-in BMS protection and deep-discharge performance for solar, inverter and backup power systems across India. Choose from 12V, 24V and 48V packs — all backed by a five-year warranty and pickup-and-return service.
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Lithium battery price is driven by stored energy, not by the label on the case. Multiply voltage by amp-hours and you get watt-hours — a 12V 100Ah pack holds 1.2 kWh, while a 48V 120Ah pack holds about 5.8 kWh. That is why the second costs several times the first despite both being “100-odd amp-hours”. When you compare quotes, compare rupees per kWh.
System voltage
Capacities
Models
Starting price
Typically used for
12V
100Ah
1
₹15,810
small inverters, CCTV, fishing and portable packs
24V / 25.6V
100–255Ah
4
₹40,191
2–3 kW home inverters and shop backup
48V / 51.2V
100–400Ah
12
₹58,210
5 kW and larger hybrid solar systems
Prices are current MuscleGrid store prices and move with the catalogue.
Which voltage should you buy?
The battery bank has to match the DC input your inverter was built for. A 24V inverter needs a 24V (25.6V) bank; a 48V inverter needs a 48V (51.2V) bank. This is not a preference — the wrong voltage will not run the inverter and can damage it. If you already own the inverter, the model number decides the battery.
Sizing the capacity
Work from the load you actually need to carry, not the biggest number you can afford. Add up the watts you want running during a cut, multiply by the hours you want them to run, then divide by the pack's kWh and allow around 80–90% usable depth of discharge. A 700W load for 4 hours is 2.8 kWh, which a 24V 120Ah pack (3.07 kWh) will carry comfortably.
LiFePO4 against lead-acid and tubular
Lithium iron phosphate costs more on day one and less over the life of the battery. You can use 80–90% of the rated capacity against roughly half of a tubular battery's, so a 100Ah lithium pack does the work of a much larger lead-acid one. It needs no water top-ups, no ventilated battery box, and holds a far flatter voltage as it discharges, so appliances see steadier power near the end of a backup.
Cycle life — 3,000 to 6,000 cycles depending on series, against a few hundred for typical tubular.
Usable capacity — 80–90% depth of discharge without harming the cells.
Weight — roughly a third of the equivalent lead-acid bank, which matters on walls and in lofts.
Maintenance — sealed, no distilled water, no acid fumes.
Built-in BMS — protects against overcharge, deep discharge, short circuit and temperature extremes.
Buying from MuscleGrid
We build these packs ourselves rather than rebadging them, which is why the warranty is handled by our own service team and not passed to a third party. Every lithium battery carries a five-year warranty against manufacturing defects and cell or BMS failure, and you get a GST invoice on every order. If you are matching a battery to an existing inverter and want it checked first, send us the inverter model and we will confirm the pairing before you buy.
It is set by capacity, not by brand. Price tracks kilowatt-hours: a 12V 100Ah pack is 1.2 kWh, a 48V 120Ah pack is about 5.8 kWh, so the larger pack costs several times more for the same chemistry. Use the table above for current MuscleGrid starting prices, and compare on rupees per kWh rather than on the sticker.
Which battery voltage do I need — 12V, 24V or 48V?
Match the battery bank to your inverter's DC input, not to your budget. A 24V inverter needs a 24V (25.6V) bank and a 48V inverter needs a 48V (51.2V) bank. Putting the wrong voltage on an inverter will not work and can damage it. If you are unsure, send us the inverter model and we will confirm before you order.
How long does a LiFePO4 battery last?
MuscleGrid packs are rated between 3,000 and 6,000 charge cycles depending on series. At one full cycle a day that is roughly 8 to 16 years of daily cycling, which is why lithium works out cheaper per unit of stored energy than lead-acid even though it costs more up front.
Is lithium better than a lead-acid or tubular battery?
For daily cycling, yes. LiFePO4 gives usable depth of discharge of 80–90% against roughly 50% for tubular, needs no water topping-up, weighs far less for the same usable energy, and lasts several times as many cycles. Lead-acid still makes sense where the battery is a rare-use standby and the up-front price is the only consideration.
What is a BMS and do these batteries include one?
The Battery Management System is the electronics that protect the cells from overcharge, over-discharge, short circuit and temperature extremes, and keep the cells balanced. Every MuscleGrid lithium pack ships with one built in — the Prime and Thunder Pro series add Bluetooth so you can read charge percentage and cell health on your phone.
What warranty do MuscleGrid lithium batteries carry?
Five years. Warranty covers manufacturing defects and cell or BMS failure. Physical damage, burnt or tampered packs and damage in transit are not covered. Register the battery after delivery so the cover is active.
