Feature: 1. AUTOMATIC DETECTION: Automatically detect the unbalanced voltage value of adjacent battery strings, and the chip will automatically balance and detect the voltage difference. 2. 3 STAGES MODE: Adopt the 3 stages mode of starting continuous work, intermittent work and stop work, active balance, with 24 hours of continuous testing. 3. GOOD PROTECTION: Use paint to protect, with the functions of waterproof, dustproof and anti leakage, and improves the practicability, safety and reliability of the circuit board. 4. WORKING PRINCIPLE: Intelligently detect the unbalanced difference between adjacent battery strings, and transmit high voltage to low voltage to achieve voltage balance. 5. APPLICABLE BATTERY: Suitable for 3.7V battery pack and 3.2V lithium battery pack, the protection board is directly visible from the inside to the outside, safe and reliable. Specification: Item Type: Active Balancer Balance Current: <2A Balanced Differential Pressure: <10MV Working Self Consumption: <10MA Sleep Self Consumption: <500UA Main Circuit Conduction Resistance: NA . Package List: 1 x Active Balancer 1 x Connecting Cable Note: The extra balance wire does not need to be soldered on the battery, please do insulation protection to avoid short circuit.