12V (12.8V) 400Ah LiFePO4 Preferred Battery Pack

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LiFePo4 CELLS & BATTERIES > - 12V (12.8V) LiFePo4 PACKS > 5.12kWh Preferred 12V 400Ah Lithium Battery
Can Be Paralleled
Can NOT be put in Series
5 Year Factory Warranty
3000 Charge Cycles
150A Maximum-Continuous
17.0"L * 10.5"W * 10.0"H - 89 Lbs.

12V (12.8V) 400Ah LiFePO4 Preferred Battery Pack | Electric Car Parts Company

2 Review(s)

On sale $1,299.00

Item ID:ECPC-BEST-12400

12V 400Ah Preferred LiFePO4 Lithium Battery Pack

Shipping Method?

Stock Option? - Required

FOB USA Stock (if stock available)

Remote Meter?

Preferred Paralleling Cabling Assemblies?

Quantity

Description
Customer Reviews
Features and Specs

Manual / Downloads

5.12kW 12V 400Ah Preferred Battery

3000 Charge Cycles

LiFePO4 Lithium Battery Pack

17L * 10.5W * 10H in.

432 * 266 * 254 mm

89 Lbs. / 40.5 Kg

5 Year Factory Warranty!

**We cannot cancel battery orders once they have been shipped.**

These battery packs can only be connected in parallel.

The Bestgo 12V 400Ah LiFePO4 Battery Pack is a high-performance lithium energy storage solution engineered for reliability, safety, and long service life. Designed using advanced automated manufacturing processes and premium lithium iron phosphate (LiFePO4) cells, this battery delivers exceptional consistency, durability, and efficiency for demanding energy storage applications.

Housed in a rugged IP66-rated aluminum enclosure, this battery is built to withstand harsh environments while maintaining optimal thermal performance and structural integrity. The integrated Battery Management System (BMS) continuously monitors cell voltage, current, and temperature to protect the battery from over-charge, over-discharge, and abnormal operating conditions, ensuring safe and dependable operation.

With 400Ah capacity and over 3,000 cycles at 80% depth of discharge, this battery provides long-term energy storage with minimal maintenance. The design also includes a built-in intelligent display indicator that allows users to quickly check voltage, state of charge (SOC), current, and remaining capacity directly on the battery.

Ideal for a wide range of applications—including solar energy storage, backup power systems, off-grid installations, marine systems, and industrial equipment—the Bestgo PF Series battery offers dependable power in a compact, durable design.

High Capacity Energy Storage – 12.8V nominal voltage with 400Ah capacity for reliable power delivery
Long Cycle Life – 3000 cycles at 80% depth of discharge for extended service life
Advanced LiFePO4 Chemistry – Superior safety, thermal stability, and longevity compared to traditional lithium batteries
Integrated Battery Management System (BMS) – Built-in protections for over-charge, over-discharge, over-current, and temperature
Heavy-Duty Aluminum Case – Durable metal enclosure with IP66 environmental protection
High Power Capability – Supports high current discharge for demanding loads
Smart Battery Indicator – Displays voltage, current, capacity, and state of charge
Integrated Carry Handles – Designed for easier installation and transport

Excellent

This battery pack is awesome. I’ve had this now for about 6 months and I’ve really been pleased with the function of this. When I placed my order the battery was delivered less than a week later via freight and undamaged. I would buy this over a battle born again in a heartbeat. Huge value here

Did you find this helpful? 4 of 5 Found Helpful

Reviewed by: Michael from South Carolina USA. on 12/26/2021

5.12kW Preferred 12V 400Ah Lithium Battery

I installed two of these almost 2 years ago. Followed the installation instructions including paralleling them. The biggest part of the job was removing the old AGM batteries. Reprogramming the chargers was easy as well. The batteries were delivered to my boat at 1 PM and I was done and gone by 4 PM the next day. There has never been any issues at all. Frankly, it was like having a new boat! Great product.

Did you find this helpful? 1 of 2 Found Helpful

Reviewed by: Robert Mackie from French Polynesia. on 2/20/2023

Item	Rating	Notes
Battery Model	BWP-FE12400-ATI-PF	-BP, -BFP means different version
Battery Description	12.8V, 400Ah LiFePO4 Battery Pack	Aluminum case, IP66 rating, built-in indicator and carrying handles
Battery Chemistry	Lithium Iron Phosphate	LiFePo4
BMS & Fuse	BMS with 250A slow-blow fuse	Installed inside the battery case
Battery Dimensions	432 × 266 × 254 mm (17 × 10.5 × 10 in)	Metal case
Terminals	M8 threaded terminals	Red and black terminals, 18mm above case
Battery Weight	40.5kg (89 lbs)	±0.2 kg tolerance
Rated Capacity	400Ah	Measured at C/3 discharge rate, 23°C
Nominal Voltage	12.8V	Operating voltage range 14.6V – 10.4V
Charging Voltage	14.6V	CC/CV charging mode (14.4V optional for longer cycle life)
Discharge Cut-off Voltage	10.0 – 10.4V	Triggered when any cell reaches 2.5V
Maximum Discharge Current	200A (30 min) 400A (15 sec) 650A (0.5 sec)	Based on 23°C and SOC between 30% and 100%
Maximum Charge Current	200A (60 min) 400A (5 min)	SOC between 20% and 70%
Cycle Life	3000 cycles	80% depth of discharge, =75% capacity remaining
Internal Resistance	3 ±2 mO	Measured with DCIR method at 50% SOC
Operating Temperature	Charge: 5°C – 45°C Discharge: -20°C – 55°C	Recommended charge 10°C – 40°C
Storage Temperature	-10°C – 40°C	For storage =3 months, keep SOC at 40–60%