Discharge current: 12ACharging current (same port): less than or equal to 10AMain circuit conduction internal resistance: less than or equal to 20m ohmCharging voltage: 21VOvercharge protectionDetection voltage: 4.25 +/- 0.025VDetection delay: 100 +/- 50MsRelease voltage: 4.15 +/- 0.1VOver discharge protectionDetection voltage: 2.7 +/- 0.08VDetection delay: 100 +/- 50MSRelease voltage: 3.0 +/- 0.1VOvercurrent protectionDetection voltage: 100MVDetection delay: 1000MSCurrent protection: 20 +/- 3ASelf-consumptionWorking consumption: less than or equal to 20UASleep over discharge consumption: less than or equal to 10UAWorking temperature range: -30/+80Colour: greenMaterial: PCBSize: 88x17x1.2MMPackage Contents:1 * Battery Protection BoardOnly the above package content, other products are not included.Note: Light 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.