Item Type: Lithium Battery Protection Board Charging Voltage: 12.6V Single Battery Charging Voltage: 4.225V Continuous Discharge Current: 0-7A Discharge Loop Internal Resistance: 505m Size: 34x34mm / 1.34x 1.34in Overcharge Protection: Detection Voltage: 4. 20.05V Protection Delay: 1S Single Battery Recovery Voltage: 4.0V Protection Release Delay: 20mS Overdischarge Protection: Detection Voltage: 2.7V Protection Delay: 1S Single Battery Recovery Voltage: 3.0V Protection Release Delay: 20mS Overcurrent Protection: Detection Voltage: 0.1V Detection Current: 183A Detection Delay: 10mS State Recovery: Automatic Recovery Short Circuit Protection: Detection Delay: 280uS Detection Voltage: 0.5V State Recovery: Automatic Recovery after Disconnecting Load Power Consumption: Working State: 20uA(25) Sleep State: 6uA(25)1This protection board adopts dedicated lithium battery protection chips as central control, featuring high integration and high sensitivity. 2Protect battery against overcharge, overdischarge, overcurrent, short circuit through detecting current and voltage of each battery. 3Parameters can be adjusted by external circuit. 4The scheme design of the protection board is mature and the quality is excellent. 5Suitable for the battery pack of 3S 18650 lithium battery cordless drills. 3 x Lithium Battery Protection Board