JK-QB2A8S-20P 主动均衡保护板
JK-QB2A8S-20P: Professional 2A Active Balance Smart BMS Guide
The Advanced Power Management Solution for 12V-24V Lithium Battery Packs
JK-QB2A8S-20P: Compact, Smart, and Powerful 2A Active Balancer.
The JK-QB2A8S-20P is a state-of-the-art battery management system (BMS) specifically tailored for 3S-8S series lithium battery packs. Whether it’s for RV leisure batteries, mobility scooters, or solar power storage, this BMS provides industry-leading 2A active balancing to keep your battery cells in perfect harmony.
Key Features & Capabilities
- 2A Active Balancing: Real-time energy transfer balancing ensures cell consistency and extends battery lifespan.
- Smart App Monitoring: Full control via Bluetooth on Android and iOS (monitoring, parameters, charging switches).
- Versatile Communication: Integrated UART interface with optional CANBus and RS485 support.
- Comprehensive Protection: Over-charge, over-discharge, over-temperature, and short-circuit protection.
- Advanced Logic: Includes Force-on Discharge, Pre-charge function, and Charging detection.
Precision Interface Definition
Multiple external NTC support, heating control, and display interfaces for full system integration.
Specifications at a Glance
| Parameters | Details |
|---|---|
| Battery Type | Ternary (3S-8S), LiFePO4 (3S-8S), LTO (7S-8S) |
| Balancing Current | 2A Active Balancing |
| Voltage Accuracy | ±3mV High Precision |
| Max Dimensions | 227mm × 120mm × 21.76mm |
Installation & Wiring Guide
The JK-QB2A8S-20P supports flexible configurations from 3 to 8 strings. Please ensure you follow the correct sequence for your cell count to avoid system damage.
Wiring Guide: Sequential connection from B0 to the final positive lead.
Activation & Setup
The BMS can be activated through three modes:
- Charge Activation: Apply a voltage 2V higher than the current battery voltage.
- Display/Button Activation: Press the physical button if your module is equipped with one.
- APP Setup: Download the JKBMS App to calibrate voltage, current, and cell types.