Quick Specifications
| Model | JK-B1A24S |
|---|---|
| Dimensions | 160 x 100 x 20 mm |
| Balance | 0.1~1A |
| Strings | 2~24S |
| Accessories | Balance wire harness |
| Application Scenarios | Small sightseeing cars, scooters, shared e-bikes, battery power systems, base station backup, solar power stations, and pack maintenance and repair. |
Quick Specifications
| Model | JK-B1A24S |
|---|---|
| Dimensions | 160 x 100 x 20 mm |
| Balance Current | 0.1~1A |
| Cell Strings | 2~24S |
| Supply Voltage | 40~100V |
| Communication | Bluetooth + mobile app |
| Accessories | Balance wire harness |
| Application Scenarios | Small sightseeing cars, scooters, shared e-bikes, battery power systems, base station backup, solar power stations, and pack maintenance and repair. |
Product Overview
The JK-B1A24S brings active balancing to 2–24S lithium packs at a 1A transfer current. Its supercapacitor energy-shuttle circuit moves charge from high cells to low cells directly, so equalization stays efficient even when the voltage spread is tiny.
The board holds finished packs within 3mV, draws power from the pack itself or a 40–100V external supply, and pairs with a mobile app over Bluetooth for live data and settings. Units can be cascaded to cover strings longer than 24S.
Understand the technology in our active vs. passive balancing guide.
Core Features
- 1A Energy-Transfer Balancing: Supercapacitor-based circuit shuttles up to 1A between cells — efficient equalization without resistor heat.
- ≤3mV Post-Balance Accuracy: ±3mV acquisition precision keeps finished packs within a 3mV spread for full usable capacity.
- Wire Resistance Detection: Balance-lead resistance checks flag poor contacts early, before they cause drift.
- Bluetooth App Control: Monitor cells live and adjust parameters from a mobile app; low-voltage shutdown protects the pack.
- Cascadable Design: Chain multiple units for battery strings over 24S with the same simple setup.
- Flexible Power: Self-powered from the battery or an external 40–100V DC source; 10mA balanced / 6mA idle at 100V.
Application Scenarios
Built for everyday equalization duty, the JK-B1A24S fits Small sightseeing cars, scooters, shared e-bikes, battery power systems, base station backup, solar power stations, and pack maintenance and repair.
Frequently Asked Questions
Does the JK-B1A24S replace my BMS?
No. The JK-B1A24S is a standalone active balancer that works alongside your existing BMS. The BMS keeps handling protection (over-charge, over-discharge, short circuit); the JK-B1A24S focuses on keeping every cell at the same voltage.
What is the balancing current of the JK-B1A24S?
The JK-B1A24S balances at up to 1A, transferring energy from the strongest cells to the weakest ones. Higher balancing current means a large or badly imbalanced pack reaches equilibrium much faster.
Can the JK-B1A24S work with fewer than 24 cells?
Yes. The JK-B1A24S supports any pack from 2 to 24 cells in series. Unused balance leads are connected according to the wiring diagram included with the unit — if you are unsure, send us your pack layout and we will confirm the wiring.
Do you offer wholesale pricing on the JK-B1A24S?
Yes. JKBMS supplies the JK-B1A24S to battery pack assemblers, distributors and brands worldwide. Click Request a Quote above for wholesale pricing, OEM/ODM customization options and lead times.