JK BMS B1A20S15PR is a smart battery management system with active balancing designed for lithium battery packs in 8–20S configuration. It ensures safe, stable operation and precise battery control. 

The built-in 1A active balancer improves cell equalization and extends battery lifespan. 

Supports Bluetooth connectivity for real-time monitoring via mobile app.  

⚙️ Specifications

•  Configuration: 8–20S
•  Battery types: Li-ion / LiFePO4 / LTO 
•  Current: up to 150A
•  Balancing current: 1A (active)
•  Interfaces: Bluetooth, CAN / RS485 (depending on version) 

🛡️ Protection

•  Overcharge / over-discharge 
•  Overcurrent 
•  Short circuit 
•  Over/under temperature 
•  Cell-level protection 

⚡ Applications

•  Energy storage systems 
•  Solar systems 
•  Inverter systems 
•  LiFePO4 battery packs 
•  Backup power