Amazon.com : Upgraded 800mAh 3.7v Li-ion Electric Toothbrush Replacement Battery Compatible with Philips HX9360 HX6340 HX6610 HX6970 HX6511 HX6711 with Extra Rubber Seal : Health & Household
How to replace the Philips Sonicare Airfloss HX8140, HX8230, HX8240 Battery - YouTube
Battery Replacement on Electric Toothbrush Philips Sonicare (How to in 4K) - YouTube
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