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Product Features

Stable Power Output

Delivers 640Wh rated energy for RV, marine and low-temperature energy storage applications.

Automatic Self-Heating Under 0°C

Supports automatic self-heating when charging under 0°C for dependable cold-weather battery operation.

Cold-Weather Charge Range

Supports charging from -20°C~+55°C and discharging from -20~+60°C for low-temperature outdoor use.

Smart BMS Protection

Supports safer charge and discharge operation with intelligent battery management. Supports 50A continuous discharge and 100A peak discharge for demanding loads.

Hysincere Self-heating Series battery application scenario for cold weather and low temperature energy storage

LF1250N-BJ 12.8V 50Ah LiFePO4 Battery for Cold Weather RV and Outdoor Power

The LF1250N-BJ is a 12.8V 50Ah Self-Heating LiFePO4 Battery from the Hysincere Self-heating Series, designed for cold-weather RV, marine, outdoor and low-temperature energy storage applications. It delivers 640Wh rated energy with 50A continuous discharge performance. It also supports automatically self-heating when charging under 0°C.

The LF1250N-BJ is a 12.8V 50Ah Self-Heating LiFePO4 Battery from the Hysincere Self-heating Series, designed for cold-weather RV, marine, outdoor and low-temperature energy storage applications. It delivers 640Wh rated energy with 50A continuous discharge performance. It also supports automatically self-heating when charging under 0°C.

Hysincere battery smart BMS protection technology for LiFePO4 and energy storage battery systems

LF1250N-BJ Smart BMS Protection for 50A Continuous Discharge

The LF1250N-BJ is designed with smart BMS protection to support safer charge and discharge operation in cold-weather RV, marine, outdoor and low-temperature energy storage applications. It supports 50A continuous discharge, 100A peak discharge, IP65 protection, charging from -20°C~+55°C and discharging from -20~+60°C. It supports 4S4P configuration for flexible system design.

The LF1250N-BJ is designed with smart BMS protection to support safer charge and discharge operation in cold-weather RV, marine, outdoor and low-temperature energy storage applications. It supports 50A continuous discharge, 100A peak discharge, IP65 protection, charging from -20°C~+55°C and discharging from -20~+60°C. It supports 4S4P configuration for flexible system design.

Hysincere deep cycle battery life technology visual for long-lasting rechargeable battery performance

LF1250N-BJ ≥4000 Cycle Life Deep-Cycle LiFePO4 Battery

The LF1250N-BJ is built for long service life with ≥4000 cycle life, supporting stable rechargeable battery performance for B2B power applications. With 640Wh rated energy, 50A continuous discharge and 5-year warranty support, it is suitable for reliable long-term use in cold-weather RV, marine, outdoor and low-temperature energy storage applications.

The LF1250N-BJ is built for long service life with ≥4000 cycle life, supporting stable rechargeable battery performance for B2B power applications. With 640Wh rated energy, 50A continuous discharge and 5-year warranty support, it is suitable for reliable long-term use in cold-weather RV, marine, outdoor and low-temperature energy storage applications.

Technical Specifications

LF1250N-BJ Product Parameters

Main Parameters
ModelLF1250N-BJNominal Voltage12.8V
Maximum Charge Voltage14.6VDischarge Cut-off Voltage10V
Nominal Capacity50AhRated Energy640Wh
Electrical Performance
Maximum Charge Current50AMaximum Continuous Discharge Current50A
Maximum Peak Discharge Current (5S)100AMaximum Series & Parallel4S4P
Temperature & Protection
Charge Temperature-20°C~+55°CDischarge Temperature-20~+60°C
IP Rating of EnclosureIP65Protection LevelIP65
Physical & Installation
TerminalsM6Dimension229*144*213mm
Weight5.9kg
Lifecycle & Compliance
Cycle Life≥4000LCD ScreenNO
Certification(EU) 2023/1542 CE MSDS UN38.3
Download Datasheet PDF

FAQ

What is the LF1250N-BJ and where is it used?

The LF1250N-BJ is intended for RV, marine, solar and backup-power systems operating in cold environments. Its listed core specifications are 12.8V nominal voltage, 50Ah nominal capacity, 640Wh rated energy. Final compatibility must be confirmed against the equipment voltage, load and mechanical space.

How should the LF1250N-BJ be charged?

Use a charger whose chemistry, voltage and current settings match the LF1250N-BJ. The listed charging limits are maximum charge voltage 14.6V, maximum charge current 50A. Charger profile, connector polarity and BMS settings should be verified before use.

What discharge performance does the LF1250N-BJ provide?

Discharge capability must be matched to the equipment's continuous and startup loads. The listed values are discharge cut-off voltage 10V, maximum continuous discharge current 50A, 5-second peak current 100A, cycle life ≥4000. Cable gauge, fusing and protection settings must be sized for the complete system.

What are the size, weight and temperature limits of the LF1250N-BJ?

For the LF1250N-BJ, the listed physical and environmental specifications are dimensions 229*144*213mm, weight 5.9kg, charge temperature -20°C~+55°C, discharge temperature -20~+60°C. Connector, wire and enclosure options can change final dimensions and weight.

Can the LF1250N-BJ be customized for an OEM project?

Hysincere can review the LF1250N-BJ for OEM/ODM integration, including connector, wire, enclosure, BMS and labeling requirements. Product-specific notes: self-heating behavior and trigger conditions must be confirmed with the final BMS configuration; listed series/parallel support: 4S4P; protection level: IP65. Provide the device voltage, normal and peak current, installation space, operating temperature and required certifications for engineering confirmation.

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