4S 15A 12.8V 18650 LiFePO4 Lithium Battery Charger BMS PCB Protection Board

Specification
• Battery Type: LiFePO4 (Lithium Iron Phosphate)
• Series Configuration: 4S (4 Cells in Series)
• Nominal Voltage: 12V / 12.8V Battery Pack
• Continuous Discharge Current: 7A
• Maximum Discharge Current: 15A
• Continuous Charge Current: 10A
• Charge Voltage Limit: 14.6V
• Single Cell Overcharge Protection: 3.65V ± 0.025V
• Board Size: 38mm × 28mm × 3.6mm (1.50 × 1.10 × 0.14 inch)
• Protection Functions: Overcharge, Over-discharge, Overcurrent, Short Circuit, Thermal Control Support
Description
The HXYP-4S-3828 4S 12V LiFePO4 BMS is a compact battery protection board designed for 4-cell LiFePO4 battery packs used in 12V lithium battery systems. It supports 7A continuous discharge current and up to 15A peak current, ensuring stable and safe battery operation.
This BMS monitors each individual cell to prevent overcharging, over-discharging, overcurrent, and short circuits, helping extend battery lifespan and improve system safety. The board also supports thermal control connection, allowing an external thermistor to monitor temperature if needed. Its small size makes it ideal for compact DIY battery packs and portable devices.
Application
• 12V LiFePO4 Battery Packs
• Rechargeable Fan Battery Packs
• Solar Energy Battery Systems
• DIY Lithium Battery Projects
• Portable Backup Power Systems