Charging detection function. 9000 mAh battery can be fully . Overcharge/ overdischarge/ overtemperature protection. Low power consumption. Battery type: - Cell combination mode: 5 strings Maximum charging current: less than or to 9A Overcharge voltage protection: 4.25V Overcharge detection delay time: 2s Over-discharge voltage protection: 14.0V Charge and discharge over-temperature protection: 65 Celsius Over temperature protection recovery: 50 Celsius Static power consumption: less than 50A The voltage of the battery after being fully : more than 20.2V Colour: blue Material: PCB Package Contents: 3 * PCB board Only 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.