Drop In LiFePO4 Battery 12.8V 100Ah 120Ah 200Ah with BMS IP65 M8 Terminal

Drop In LiFePO4 Battery 12.8V 100Ah 120Ah 200Ah with BMS IP65 M8 Terminal

Meet the Family – Three Capacities, One Trusted Platform
This series of 12.8V lithium iron phosphate batteries comes in 100Ah, 120Ah, and 200Ah options. All share the same LFP chemistry—the safest lithium technology—and the same integrated BMS protection. Whether you need compact backup for a weekend getaway or serious capacity for an off-grid cabin, there’s a size that fits. They’re lighter than lead-acid, maintenance-free, and built with screw caps to protect terminals during transport. No watering, no corrosion, no fuss.

The 120Ah Model at a Glance
Let’s zoom in on the 120Ah version: 12.8V nominal, 120Ah rated capacity, 1536Wh of stored energy. Internal resistance stays ≤65mΩ, efficiency hits 99%, and self-discharge is just 2% per month. The internal layout is 4S2P (four cells in series, two in parallel). Dimensions: 446 x 198 x 208mm. Weight: 15.5kg. Terminals: M8. Housing: ABS with IP65 dust/jet protection. An optional SOC display is available if you want a quick glance at remaining power.

Specifications

How Much Power Can It Deliver
You can draw 100A continuously—that’s enough to run a 1200W inverter without breaking a sweat. When a fridge compressor kicks in or a pump starts up, it handles 160A surges for up to 3 seconds. The BMS cuts discharge at 8.8V and reconnects at 10.8V. Short-circuit protection fires within 300‑800µs.

How to Charge It
Feed it 14.4‑14.8V with CC‑CV charging. For daily use, 50A is the sweet spot to maximize life; if you’re in a rush, 100A gets you back to full faster. Float at 13.8V when you hit 100%. The BMS stops the party at 15V.

How Long It Lasts
Over 4000 cycles at 80% depth of discharge (1C charge/discharge at 25°C)—and after all that, it still holds >80% of its original capacity. Daily cyclers get more than 10 years of service. Low self-discharge means it sits ready even after weeks of idle time.

Works Wherever You Are
Discharge from -20°C to 60°C. Charge from 0°C to 60°C. Store between -20°C and 60°C. The BMS shuts down at 65°C to protect the cells. This wide range means it fits in cold garages, hot engine bays, or uninsulated sheds.

Built-in Protection, No Surprises
The BMS watches over everything: overcharge (stops at 15V), over-discharge (stops at 8.8V), overcurrent, short circuit (300‑800µs response), and temperature (65°C cut-off). It also balances cells during charging so every cell pulls its weight, maximizing total capacity and life.

Where It Shines
Home solar storage paired with a 12V inverter. RV house banks running lights, fans, fridges, and entertainment. Marine use for trolling motors, fish finders, nav lights, and bilge pumps. Off-grid cabins, tiny homes, golf carts, floor scrubbers, and telecom backup—this battery fits.

Why Switch from Lead-Acid
A lead-acid battery of the same label capacity gives you only half the usable juice—you can’t safely drain it past 50%. This LiFePO4 gives you 100% usable capacity. It weighs half as much, lasts 10 times longer (4000 cycles vs. 300‑500), and asks for zero maintenance. No watering, no terminal corrosion, no fumes, no equalization charges. Just reliable power, day after day.