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
Amazon.com: 800mAh 3.7v Li-ion Electric Toothbrush Replacement Battery Compatible with Philips HX8911/02 HX9110/02 HX9112 HX9111/12 HX9903/11 HX9957/51 HX9954/56 HX9924/65 HX9924/61 Series with Pins : Health & Household