Quick Specifications
| Model | JK-BD6A20S12P |
|---|---|
| Dimensions | 162 x 102 x 20 mm |
| Material | Aluminum Alloy Heat Sink & PCB |
| Balance | 0.6A Active Equalization |
| Cont. Current | 120A |
| Peak Current | 250A |
| Strings | 7S~20S (Li-ion) / 8S~20S (LiFePO4) / 12S~20S (LTO) |
| Accessories | Sampling wires, Built-in Bluetooth, 3x NTC Temperature sensors |
| Application Scenarios | Solar power stations, base station backup power, high-power storage |
Quick Specifications
| Model | JK-BD6A20S12P |
|---|---|
| Dimensions | 162 x 102 x 20 mm |
| Material | Aluminum Alloy Heat Sink & PCB |
| Balance | 0.6A Active Equalization |
| Cont. Current | 120A |
| Peak Current | 250A |
| Strings | 7S~20S (Li-ion) / 8S~20S (LiFePO4) / 12S~20S (LTO) |
| Accessories | Sampling wires, Built-in Bluetooth, 3x NTC Temperature sensors |
| Application Scenarios | Solar power stations, base station backup power, high-power storage |
Product Overview
The JK-BD6A20S12P is a 120A smart BMS with 0.6A active balancing for high-current lithium packs up to 20S. One board covers Li-ion (7S~20S), LiFePO4 (8S~20S), and LTO (12S~20S), simplifying inventory for distributors serving multiple pack configurations.
Rather than dissipating excess energy through resistors, the active balancer shuttles charge between cells — keeping the pack cool, balanced, and efficient under heavy cycling. With 250A peak output, ±3mV voltage precision, and full-spectrum protection, it handles demanding jobs from solar stations to light EVs.
Core Features
- 0.6A Active Balancing: Moves charge between cells instead of wasting it as heat, keeping large packs balanced under heavy cycling.
- 120A Continuous / 250A Peak Output: Ultra-low 0.65mΩ MOSFET resistance sustains high current with minimal heat generation.
- Wide Chemistry Compatibility: Li-ion 7S~20S, LiFePO4 8S-20S, LTO 12S~20S on one board; 20~100V working voltage.
- ±3mV Voltage Accuracy: Precise per-cell measurement plus a built-in coulomb counter for reliable SOC estimation.
- Full Protection Suite: Overcharge, over-discharge, adjustable overcurrent (10A-120A adjustable), overtemperature, and short-circuit protection; same-port charge/discharge.
- Bluetooth App + Optional GPS: Real-time monitoring and parameter tuning via Android/iOS; GPS remote and RS485/CAN options for commercial fleets.
Application Scenarios
Built for systems that work hard every day, the JK-BD6A20S12P fits Solar power stations, base station backup power, high-power storage.
Frequently Asked Questions
Which battery packs is the JK-BD6A20S12P compatible with?
The JK-BD6A20S12P supports 7S~20S (Li-ion) / 8S~20S (LiFePO4) / 12S~20S (LTO) lithium battery packs — covering Li-ion, LiFePO4 and LTO chemistries (see the specification table above for the exact range per chemistry). It delivers 120A continuous discharge current, making it a solid choice for solar energy storage, RV power systems and industrial backup power.
How does the 0.6A active balancing on the JK-BD6A20S12P work?
Instead of burning excess charge off as heat like a passive balancer, the JK-BD6A20S12P transfers energy from higher-voltage cells to lower-voltage cells at up to 0.6A. This keeps every cell at a uniform voltage, extends overall pack life and greatly reduces heat during charging.
Can I monitor the JK-BD6A20S12P from my phone?
Yes. The JK-BD6A20S12P has built-in Bluetooth and connects to the JK BMS smartphone app, where you can check individual cell voltages, pack current, temperature readings and state of charge in real time. An optional GPS module adds remote location tracking for deployed systems.
Do you offer wholesale pricing or custom versions of the JK-BD6A20S12P?
Yes. JKBMS supplies the JK-BD6A20S12P to battery pack assemblers, distributors and brands worldwide. Click Request a Quote above for wholesale pricing, OEM/ODM customization options and lead times.