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
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
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
800mAh Li-ION battery for Philips Sonicare toothbrush HX8910/8920/8930 - Walmart.com
Battery Replacement on Electric Toothbrush Philips Sonicare (How to in 4K) - YouTube
EveryMarket
800mAh Electric Toothbrush Battery Compatible with Philips Sonicare Replacement Parts HX89 HX91 HX99 Series with Solder Wire and Rapid Disassemble Tools Set