Makita cordless screwdriver disassembly

Makita cordless screwdriver disassembly and battery measurement. How to disassemble a Makita cordless screwdriver in case of battery replacement. How to find out which battery cell is faulty. If the Makita screwdriver does not charge, does not turn on, or has a weak pull, the battery or cell may be defective. Check out the complete disassembly for the battery.