Features: _x000D_ 1. Brand new and high quality. _x000D_ 2. It adopts high current and high withstand voltage discharge MOSS. The internal components are brushed with three anti-adhesive (waterproof, anti-static, anti-interference), stable ans reliable quality. _x000D_ 3. The board has short circuit protection function, overcharge protection function, over discharge protection function, balanced voltage function, low conduction internal resistance functions. _x000D_ 4. Suitable for lithium batteries with nominal voltage 3.7V 10-14 strings _x000D_ 5. Applied to rechargeable lithium ion battery, lithium polymer battery. _x000D_ _x000D_ Specification: _x000D_ Condition: Brand New _x000D_ Model: TK14S40A-10M/V1 _x000D_ Single Overcharge Protection Voltage: 5.240.025V _x000D_ Single Overcharge Release Voltage: 4.190.05V _x000D_ Rated Charging Current: 40A _x000D_ Single-Chip Over-Discharge Protection Voltage: 2.80.08V _x000D_ Single-Chip Over-Discharge Release Voltage: 3.00.08V _x000D_ Discharge Protection Current: 12010A _x000D_ With Or Without Short Circuit Protection: Yes _x000D_ Short Circuit Protection Recovery Condition: Load-Disconnect _x000D_ Equilibrium Voltage: 4.25V _x000D_ Equilibrium Current: 26Ma _x000D_ Internal Resistance: 3.5m _x000D_ Self-Consumption: 50uA _x000D_ Weight: Approx. 108g / 3.8oz _x000D_ Size: Approx. 60 * 90 * 10.1mm / 2.4 * 3.5 * 0.4in _x000D_ _x000D_ Package List: _x000D_ 1 * Lithium Battery Protection Balance Board Module _x000D_ 1 * Connecting Cable _x000D_ _x000D_ Note: _x000D_ 1. The difference between the split port and the same port: the split port: when charging and discharging, the positive and negative poles are separated; the same port: charging current is the same as the discharge current, and charging and discharging are in the same place. _x000D_ 2. Without balance and balance: balance: when the high-voltage battery is discharged with a resistor, waiting for the low-voltage battery to charge the voltage to achieve the same voltage and improve the performance of the whole battery.