1. Over-discharge protection voltage: 2.7V0.05V2. Over-discharge voltage: 3.0V0.05V3. Over-discharge delay: 0.5-1.5S4. Continuous discharge current: 40A5. Overcurrent delay: 0.5-1.5S6. Instantaneous protection current:40A version = 170A (maximum)7. Over-current conditions: charge or disconnect the load8. Short-circuit conditions: charge or disconnect the loadCharge1. Overcharge protection voltage: 4.25V0.025V2. Overcharge voltage: 4.15V0.025V3. Overcharge delay: 0.5-1.5S4. Continuous charging current: 40A5. Charge equalization voltage: 4.2V0.025V6. Charge equalization current: 45MA (maximum)7. Charger voltage: 56V (recommended)Activation (1) B- and P- wires can be short-circuited once(2) Or recharge to activateSpecification1. Charging over temperature: -5 to 552. Discharge over temperature: -30 to 703. Working power consumption: less than 40uA4. The main circuit conduction internal resistance: less than 15mohm5. Temperature range: -40 to +806. Disconnection protection: Yes7. Wiring mode: same port, can be connected to weak current switchB-: connect to the negative electrode of the battery,P-: Connect to the negative electrode of charge and discharge/Colour:As shownMaterial:PC+MetalPackage Contents:1 x Protection board(40A)(Due to different product batches, the appearance may be different, the function is the same)Only the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.