800mAh 2.4v Rechargeable Electric Toothbrush Battery Replacement Part Compatible with Philips HX6210 HX6220 HX6230 HX6240 HX6250 HX6817/01 HX6810/50 HX6254/81 HX6263 HX6275 and 4100 Series Toothbrush

- Capacity: Rechargeable 2.4V 800 mAh NI-MH Battery. This premium quality battery with long pins allow easy insertion and fit perfectly the circuit board holes - When To Replace: When you notice that your toothbrush runs out of power quickly after been fully charged, it means the battery has reached its lifespan, you will need to replace a new battery - Important: Kindly remind that if your toothbrush is not responding and not charging at all, it means the circuit board or more parts has been damaged, it won't help repair with battery change. We have demonstrate above how the aged rubber seal could let the water seep in the handle and further damage the internal structure - Our commitment: All our batteries are checked and tested before shipping. Please note changing battery require basic soldering skills, you could follow our installation guide - Remarks: Our technician recommend you to change rubber seal regularly, every 3 month to prolong the service life of your toothbrush, motor and battery; to replace the battery you may need to replace the rubber seal depends on the method of installation and toothbrush series