["Features:\r\nThe for protection board is for 5 series Li-ion batteries, mainly used for electric power tools.\r\nIt uses special IC for 5S lithium batteries as processor to detect real-time voltage, charge and discharge current and ambient temperature of each battery.\r\nStable various protective functions for charging and discharging, such as overcharge for protection, over-discharge for protection and short circuit for protection.\r\nLow power consumption,the working current is about 25uA and quiescent current is about 6uA.\r\nChoosing the correct for protection board and applying it appropriately is vital to the longevity your batteries.\r\n\r\nSpecifications:\r\nCharge Voltage:19/21V \r\nSingle Cell Charge Voltage:3.8/4.25V\r\nContinuous Discharge Current:8-20A\r\nOvercharge Single Cell Detection Voltage:3.85-4.25V\r\nOvercharge for Protection Delay:1S\r\nOvercharge Single Cell Recovery Voltage:3.75-4.13V\r\nOvercharge for Protection Release Delay:1mS\r\nOver-discharge Single Cell Detection Voltage:2-2.8V\r\nOver-discharge for Protection Delay:1S\r\nOver-discharge Single Cell Recovery Voltage:2.5-3.0V\r\nOver-discharge for Protection Release Delay:100±20mS\r\nOver-current Detection Voltage:0.1-0.4V\r\nOver-current Detection Current:30±5A\r\nOver-current Detection Delay:1S\r\nShort Circuit for Protection Support:Yes\r\nShort Circuit Detection Delay:250uS\r\nShort Circuit Release Delay:1S\r\nShort Circuit Detection Voltage:0.8V\r\nRecovery State:Auto after Disconnect Load\r\nOver Temperature for Protection\tfor Protection Temperature:70±5℃\r\nRecovery Temperature:55±5℃\r\nWorking State\t:25uA (25℃)\r\nStand-by State:6uA(25℃)\r\nDischarge Main Circuit Internal Resistance:30±5mΩ\r\nOperating Temperature: -40℃-85℃ RH≤75%\r\nStore Temperature: -40℃-125℃ RH≤75%\r\nSize\tLength x Width:45x40mm/1.77*1.57\"\r\n\r\nPackage Contents: \r\n1 Pc x Battery Charger for Protection Board\r\n\r\nNote:\r\nPlease allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid\r\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!"]