Bảng Mạch Bảo Vệ Pin Lithium 2s 20a Bms 7.4v 8.4v 18650

Specification: Product model: HW-391 Charging Voltage: DC 8.4-9V Version: Balance, Standard Continuous discharge current: maximum 20A (if heat dissipation environment is not good, please reduce the use of load current) Continuous charging current: maximum 10A Applicable Choice: For lithium batteries with nominal voltage of 3.7V and charge of 4.2V (including 18650, 26650 and polymer lithium batteries), can start-up current 25A, power less than 50W electric drill, or 168W resistive load Product size: 48mm*20mm*4mm/1.88*0.78*0.15'' Packing weight: 3g Warm Tips: 1. Successful start-up of the drill requires 2pcs 10℃-20℃ power batteries, 4pcs 5℃-10℃ power batteries(Recommended power battery models: for SONY VTC4, VTC4A, VTC5A, VTC6), V and 8.4V connections, using copper wires of more than 2 square millimeters. 2. Connect 0V, 4.2V. 8.4V, 8.4V strictly according to the figure. When welding the wire, you can't touch any components on the board, and don't intentionally short circuit. 3. When welding batteries or charging, as long as a single battery exceeds 4.2V, * 430 "resistance will heat and discharge (discharge to 4.19V or so stops heating). If the "430" resistor is heated seriously (too hot to touch), please check whether the wrong connection is made. Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.