Robot vacuum cleaner not working Battery repair

Robot vacuum cleaner not working Battery repair. Robot vacuum cleaner not working This problem is often encountered, personally, 3 times, how to fix it back to work as before. This problem I encountered was caused by Some cells inside the battery are damaged. Today I’m going to show you how to repair a robot vacuum cleaner battery. To begin with, remove the battery from the robot vacuum cleaner. Usually the ones I found have 4 internal batteries connected in series. Usually one battery has a voltage of 3.2 to 3.7 volts. I used a voltmeter to measure the voltage on the battery. I have detected 1 battery, abnormally low voltage. it’s a broken battery I disassembled the battery. and replace the battery with the old one that still works from the previous battery breakdown Chinese products, made to last for a not long time, no BMS, battery balance over current. #RobotVacuumCleaner #RobotCleaner #BatteryRobotCleane