Philips Sonicare 2 Series Motor Replacement - iFixit Repair Guide
What's Inside the Sonicare Airfloss? | josh.com
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