Replaced battery in electric toothbrush. Fix-up, don't throw out! : r/DIYUK
Teardown: What's inside a Phillips Sonicare electric toothbrush - Power Electronic Tips
Amazon.com : 800mAh Electric Toothbrush Battery Compatible with Philips Sonicare Replacement Parts HX65 HX67 HX68 HX69 HX89 HX99 Series with Solder Wire and Rapid Disassemble Tools Set : Health & Household
Sonicare toothbrush teardown: microcontroller, H bridge, and inductive charging
Sonicare toothbrush teardown: microcontroller, H bridge, and inductive charging
Sonicare toothbrush teardown: microcontroller, H bridge, and inductive charging
800mAh Electric Toothbrush Battery Compatible with Philips Sonicare Replacement Parts HX89 HX91 HX99 Series with Solder Wire and Rapid Disassemble Tools Set
Philips Sonicare (HX6530) Actuator – New Screwdriver
Amazon.com : Electric Toothbrush Battery Replacement for Philips Sonicare Parts HX6300 HX6500 HX6610 HX6700 HX6900 HX9300 Series with Solder Wire, Disassemble Tools Set and Waterproof Stickers 800mAh : Health & Household