Upgraded 800mAh 3.7v Li-ion Electric Toothbrush Replacement Battery Compatible with Philips HX9360 HX6340 HX6610 HX6970 HX6511 HX6711 with Extra Rubber Seal
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Amazon.com: Amazon Basics 8-Pack AAA Performance 800 mAh Rechargeable Batteries, Pre-Charged, Recharge up to 1000x, 8 Count : Health & Household