5Pcs 21V 5S 20A Electric Grinder 3.7V Battery PCBA Hand Drill Accessories

The are constantly updated and improved and some small components are changed from time to time such as resistance and diode it will not affect the use!Cannot as the condition opens dispute! TheBMS is for 5 series - batteries mainly used for electric power It uses IC for 5S batteries as processor to detect real-time voltage charge and discharge current and temperature of each battery Stable protective functions for charging and discharging such as overcharge protection over-discharge protection and short circuit protection. Low power consumption the working current is about 25uA and quiescent current is about 6uA. Choosing the protection board and applying it appropriately is vital to the your batteries. Charge Voltage: 21V Single Cell Charge Voltage 4.25V Current Continuous Discharge Current 8-20A Overcharge Protection Overcharge Single Cell Detection Voltage 4.25V Material: PC+Metal colour: As shown Contents: 5 x protection board(Due to different product batches the appearance of the product may be different the function is the same) Only the above content other are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.