This document is a user manual for a BougeRV Lithium Iron Phosphate (LiFePO4) battery with a self-heating function.

Function Description

The BougeRV LiFePO4 battery is designed to provide reliable power with a focus on safety and longevity. It features a self-heating function that ensures optimal charging performance in cold environments. The battery can be used individually or as part of a larger battery system, supporting both series and parallel connections to achieve higher voltages or capacities.

Important Technical Specifications

Model: Lithium Iron Phosphate Battery (LiFePO4)
Capacity: 1280Wh / 12.8V / 100Ah
Nominal Voltage: 12.8V
Nominal Capacity: 100Ah
Energy: 1280Wh
Charge Voltage: 14.1V
Charge Current:
- Standard charge: 50A (0.5C)
- Rapid charge: 100A (1.0C)
Maximum Continuous Charge Current: 100A (at 77°F)
Maximum Continuous Discharge Current: 100A (at 77°F)
Maximum Continuous Discharge Current (3s): 300A (3C)
Discharge Cut-off Voltage: 10V
Over-Charging Protection Voltage: ≥14.8V (Adjust the charging voltage below 14.8V to resume charging)
Over-Discharging Protection Voltage: 9.40±0.32V
Cycle Life: 4000 cycles (remaining battery capacity ≥ 80% of initial capacity)
Charge Temperature Range: 32°F~131°F
Discharge Temperature Range: -4°F~131°F
Maximum Series Voltage Of Battery Pack: 48V (up to 4 batteries in series)
Maximum Parallel Current Of Battery Pack: 400Ah (up to 4 batteries in parallel)
Charge Method: CC/CV (Constant Current/Constant Voltage)
Internal Resistance: ≤30mΩ
Self-discharge: 3%
Protection Rating: IP65
Dimensions: L11.4 * W8.26 * H7.67 inches (290mm * 210mm * 195mm)
Weight: 27lb

Usage Features

Self-Heating Function: The battery automatically activates its self-heating function when charging and the battery temperature is ≤33.8°F. Heating continues until the battery temperature reaches ≥46.4°F, preventing charging in low-temperature environments (below 32°F) that could reduce battery life. This function only operates when the battery is charging, utilizing external energy.
BMS Protection: The integrated Battery Management System (BMS) provides comprehensive protection, including overcharge, overdischarge, overcurrent, high temperature, low temperature, and short circuit protection.
Battery System Scalability:
- Up to 4 batteries can be connected in series to form a 48V battery system.
- Up to 4 batteries can be connected in parallel to form a 400Ah battery system.
- For combined series and parallel connections, batteries should first be connected in parallel, and then the parallel-connected packs should be connected in series.
Product Appearance: The battery features a positive terminal (M8, 0.6inch), negative terminal (M8, 0.6inch), threading holes (60mm5mm), a handle, and mounting holes (Φ0.2inch) for secure installation. There are 4 0.2-inch holes at the bottom and 2 threading holes for better securing the battery.
Connection Guidelines:
- Ensure each battery is fully charged before connecting in series or parallel.
- It is recommended to use batteries of the same brand and specification for connections. If using different batteries, contact BougeRV for confirmation.
- After parallel connection, wait at least 6 hours before charging and discharging.
Charging Equipment: Compatible with solar charge controllers (MPPT/PWM) set to 12V system voltage for lithium iron phosphate batteries, and chargers that support lithium battery/lithium iron phosphate battery charging.

Maintenance Features

Storage Temperature:
- Short term: -4°F~113°F
- Long term: 32°F~95°F
General Storage: Store at 75% capacity and recharge every 6 months.
Discharge Management: Do not discharge the battery under 10V to prevent over-discharge, which shortens battery life.
Regular Charging: The battery needs to be charged every 3-6 months to prevent over-discharge.
Troubleshooting Low Voltage: If the battery fails during use and the voltage is too low to charge, a charger with a 0V function can be used to charge the battery from 0V.
Safety Precautions:
- Read all instructions and cautions before installation.
- Do not disassemble or attempt to repair the battery.
- Keep the battery away from water, heat sources, sparks, and hazardous chemicals.
- Ensure all connections are tight and correct.
- Wear proper protective equipment and use insulated tools when working on the battery.
- Do not wear jewelry or other metal objects when working on or around the battery.
- Keep the battery out of reach of young children.
- Do not expose the battery to extreme temperatures over 113°F.
- Avoid short circuits, crushing, mutilation, reverse polarity, or disposal in fire.
- Do not connect or disconnect terminals from the battery without first disconnecting loads.

Warranty and Support

BougeRV provides a 5-year warranty service for the battery, effective from the date of purchase. To claim warranty, provide the order number and the serial number (barcode) from the back of the battery. The warranty does not cover damage from improper installation, environmental factors, collision, improper maintenance, product modification, or failure to follow safety instructions. BougeRV offers 1-on-1 Solar Solution support. Contact information for inquiries: service@bougerv.com, 1-669-232-7427, www.bougerv.com.

BougeRV LiFePO4 - Product Appearance

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