1. Over-discharge protection voltage: 2.7V0.05V 2. Over-discharge recovery voltage: 3.0V0.05V 3. Over-discharge delay: 0.5-1.5S 4. Continuous discharge current: 40A 5. Overcurrent delay: 0.5-1.5S 6. Instantaneous protection current: 40A version = 170A (maximum) 7. Over-current recovery conditions: charge recovery or disconnect the load 8. Short-circuit recovery conditions: charge recovery or disconnect the load Charge 1. Overcharge protection voltage: 4.25V0.025V 2. Overcharge recovery voltage: 4.15V0.025V 3. Overcharge delay: 0.5-1.5S 4. Continuous charging current: 40A 5. Charge equalization voltage: 4.2V0.025V 6. 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 activate Specification 1. Charging over temperature: -5 to 55 2. Discharge over temperature: -30 to 70 3. Working power consumption: less than equal 40uA 4. The main circuit conduction internal resistance: less than equal 15mohm 5. Temperature range: -40 to +80 6. Disconnection protection: Yes 7. Wiring mode: same port, can be connected to weak current switch B-: connect to the negative electrode of the battery, P-: Connect to the negative electrode of charge and discharge/ Colour:As shown Material:PC+Metal Package Contents: 1 x Protection board(40A)(Due to different product batches, the appearance may be different, but the function is the same) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.