2 Pcs BMS 5S 20A 18V 21V - Electric Tools Battery Power Bank Charge Board NTC Temperature Protection DC Connector

[Power consumption] Working status: 25uA (25℃); Sleep state: 6uA (25℃) [temperature protection] Working temperature: -40℃-85℃ Relative humidity≤75%; Storage temperature: -40℃-125℃ Relative humidity≤75% [Voltage] Charging voltage: 21V; Single-cell charging voltage: 4.25V [current] Continuous discharge current: 8-20A Internal resistance: Discharge main circuit internal resistance: 30±5mΩ Material: PC+Metal colour: As shown Package Contents: 2 x Protection board 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.