18v 21v 5S BMS 18650 PCB for Electric Angle Grinder Scissors Electric Drill Wrench Power Tool Accessories

The products are constantly updated and improved, and some small components are changed from time to time, such as Color, resistance and diode, but it will not affect the use!Cannot serve as the condition that opens dispute!If you are buying BMS to repair the original battery, be sure to measure every small cell of the battery before placing your order. If there is a problem with the battery, you can't use it even if you replace the BMS.note:Please allow 1-5 mm 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.