12.8V 400Ah LiFePO4 Battery Pack

12.8V 400Ah

The ultimate 12V energy solution with 5.12kWh capacity, built for industrial backup and large-scale solar arrays.

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Unmatched 12V Capacity: Provides a massive 5120Wh of energy storage.

High-Power Throughput: Integrated 400A BMS allows for heavy industrial loads and rapid energy transfer.

Safety Focused: Precise voltage protection (10V-14.6V) and high-temperature cutoff at 60°C for maximum site safety.

LiFePO4 Battery Parameter Table

Description	Dimensions (LWH)	Packaging Information
Rated Energy: 5120Wh Cell: Prismatic LiFePO4 Terminal: M8 Configuration (Customizable): 4S2P, 4S4P Nominal Voltage & Capacity: 12.8V, 400Ah Max Charging Current: 200A Instantaneous Discharge Current: 800A Continuous Discharge Current: 400A Cycle Life: 6000 cycles Water & Dust Resistance: IP65 Charging Temperature: 0~45°C Discharge Temperature: -20~60°C Storage Temperature: -20~65 °C Operating Voltage Range: 10-14.6V Over-Charge Protection Voltage: 14.6V ± 0.05V Over-Discharge Protection Voltage: 10V ± 0.05V Battery Protection Temperature: 60°C ± 5°C	640245220mm	Unit N.W.: Appr. 36kg Packing Qty: 1pc/ctn CTN Size: 697x298x265mm Outer CTN N.W.: 36kg Outer CTN G.W.: 36.80kg

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Message us on WhatsApp with the capacity you need, the quantity and the destination market. You will get the right configuration and a price, usually within the hour. You can also email sales@beeste.com — we reply within 24 hours.

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What 5120Wh means in a real system

5,120Wh is the largest single 12V pack in the range and roughly a full day of household essentials plus a fridge. The integrated 400A BMS supports about 5,120W of draw, which is enough for industrial backup loads without paralleling.

Who it suits

Industrial backup, large solar arrays and installations where a single 12V block simplifies the build. Buyers in this class are usually integrators, not end users.

Before you order

The stated 10V to 14.6V protection window defines the usable range. Verify the low-voltage cut-off against your inverter's minimum input.
At this capacity, weight and lifting provision are part of the product, not an afterthought.
Confirm transport classification and documentation for the exact configuration being shipped.

Listing note

Largest 12V block in the range. Sell it to integrators as a way to avoid paralleling four smaller packs, and quote the reduced busbar and balancing work as part of the value.