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Showing posts from January, 2014

Fixing my Wahl 9918 Groomsman Beard and Mustache Trimmer

Not everyone would bother repairing a $20 beard trimmer, but why not fix something for under $5 instead of spending another $20?

My Wahl 9918 Groomsman Beard and Mustache Trimmer has admirably performed its beauty duty for many years, but the time came when the battery just wasn't holding a charge any more.  Most people would just put the trimmer in the trash and buy a new one, but I figured I could repair my Wahl and save some money.

In fact, even higher end trimmer and rotary shaver brands, like Norelco and Remington, can be repaired using a process similar to the one I used to fix my Wahl.  Read on to find out how.

I opened up the Wahl by popping off the black plastic faceplate with a tiny flathead screwdriver, which revealed two screws.  By removing the two screws I was able to easily open up the unit, revealing the guts of the device.

The internals are rather simple: a motor, a simple circuit board, a switch, and a NiCad battery pack soldered into place.

I decided that the ba…