8S 5A Li-ion Battery Balancer

This li-ion battery balancer is ideal for energy storage cabinets and other applications, supporting up to 8 series-connected batteries at 5A max current. Its 24/7 active balancing technology extends battery lifespan, while a -20°C to 60°C operating range ensures all-climate reliability. The pre-aligned mounting system cuts assembly time by over 60% and a foolproof locking connector prevents reverse insertion and vibration-related failures, delivering a streamlined, worry-free user experience.

Feature

• Wide Temperature Range: Operates reliably from -20℃ to 60℃, ensuring stability in all climates.
• Multi-Application Ready: Designed for energy storage cabinets, light-duty and power lithium batteries, offering versatile energy management.
• 24/7 Active Balancing: Continuously monitors and corrects cell voltage differences in real time, maximizing battery performance and lifespan.

Details

1. Integrated Pre-aligned Mounting System: Features precision-molded locating holes and standardized screw ports, enabling foolproof blind-mount installation. Eliminates alignment adjustments, reduces assembly time by ≥60%, and cuts labor overhead.
2. Foolproof Locking Connector Architecture: Incorporates keyed polarization design with positive-lock clips. Ensures error-proof harness engagement, prevents reverse insertion and disconnection under vibration, eliminating short-circuit and balancing failures. 

 

8S 5A Battery Balancer Dimension

8S 5A Battery Balancer Structure

8S 5A Battery Balancer Wiring Diagram

Notes: Please solder and inspect the cable harness independently first. Only after confirming there are no errors should you plug in the balancing module.

1. Solder the Cable Harness: Start connecting the cable harness from the main negative terminal B-. Then, connect the second black wire (first red wire) to the positive terminal of the first battery string, and continue connecting to the positive terminals of each subsequent battery string in sequence, until the last red wire is connected to the main positive terminal B+.
2. Measure the Voltage: After connecting the entire cable harness, use a multimeter to check that the voltage of each string and the total voltage are within the normal range (3.0~4.15V for ternary lithium batteries, 2.5~3.6V for LiFePO₄ batteries). If the voltage is abnormal, check for soldering issues such as cold solder joints, false soldering, or uneven solder points. Only after confirming the voltage is normal can you plug in the active balancing module.
3. Start Using: Active balancing module will activate automatically when powered on. If the cable harness becomes disconnected, you will need to power it off and on again to reactivate. The module will automatically start balancing when the voltage of any battery string is ≥3.1+0.1V and stop when it drops to ≤3.0+0.1V. The green indicator light will be on when balancing is active and off when it is inactive.