2.4V AAA NiMh 800 mAh Battery Pack for Cordless shavers, razor,

• Voltage: 2.4 V
• Capacity: 800mAh
• Cell Size: AAA
  
• Chemistry: NiMH Nickel-Metal Hydride
• 100% compatible with Original Battery
• Assembled In: USA
  
  

This battery will fit most versions of the Philips Sonicare HX3110 PowerUp toothbrush and others in the HX3100 series, plus most HX6200 models (Sonicare 2 Series). It also fits some versions of the Waterpik SR-3000 Sensonic Professional toothbrush and some versions of the Waterpik WP-900 toothbrush. Please open your toothbrush to check your existing battery before ordering.

• It is strongly recommended that you open up your toothbrush before ordering to double-check the battery measurements because different sizes were fitted to different batches of the same model.
  
• battery installation requires replacement of the old batteries and proper placement of the new one including soldering in place
• some models not shown here can use this battery pack but will require removal of the circuit board before installation  
• make sure the polarity of the terminals are matched (+ to + and - to -) this may require reversing the direction of solder tabs
• if you are not sure about the proper handling of batteries do not buy - have a professional make the repair

In electric razors, batteries are usually soldered onto the electronic circuit board. In most cases, a soldering iron will need to be used.