How do you replace the battery in a shaver?

To replace the battery in a shaver, completely discharge the shaver, open the casing, remove the old battery, install the new batteries, and replace the shaver cover. Charge the batteries for a while, and switch the shaver on to ensure that the new batteries function well.

Determine the type of battery that the shaver uses. If replaceable batteries are used, simply remove the casing, and replace the old batteries with new ones. Many rechargeable batteries are soldered to the circuit board and require careful disassembly prior to replacement. Remove the screws behind the shaver to open the casing, and use a wire cutter and soldering unit to remove and replace the old batteries. If the batteries are pre-tabbed, simply press the tabs so that they come into contact with the circuit board, and replace the cover.