JK BMS B2A20S20PR is a smart battery management system designed for high-performance lithium battery packs. It supports configurations from 8 to 20 cells (8S–20S) and ensures stable, safe, and efficient battery operation under high load conditions. 

The built-in 2A active balancing system equalizes cell voltages efficiently, reducing cell degradation and extending overall battery lifespan. 

Equipped with Bluetooth connectivity, the BMS allows real-time monitoring and configuration via a mobile app.  

⚙️ Key Specifications

•  BMS type: Smart, active balancing 
•  Cell configuration: 8–20S
•  Battery types: 
  •  Li-ion 
  •  LiFePO₄ 
  •  LTO 
•  Continuous current: up to 200A
•  Balancing current: up to 2A (active)
•  Communication: 
  •  Bluetooth (iOS / Android app) 
  •  CAN / RS485 (depending on version)