Replace a Dead Rechargeable Battery in a Shaver [or any rechargeable appliance] with Standard AA or AAA Batteries

Step 5 Wire it Up

To wire it up, the battery pack, switch, and motor need to be wired in series. Either the + from the battery pack goes to the switch or the - does -- it doesn't matter as long as you go battery-pack-to-switch-to-motor-to-battery-pack. In my case, it was more convenient to use the + side with the switch as both the + battery terminal was on that side and the existing wire on the motor was long enough to get to the switch, so I just drilled a hole through the shaver to hook it up.