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For around $5 you would think the battery in an Oral B Pulsar toothbrush would last a little longer. Here is how I overcame that problem.
These are the tools I used. A pair each of vice grips, adjustable pliers, and small needle nose pliers (the smaller the better)
This is what the toothbrush looks like.
Here you can see the dividing line near the center of the brush where the battery compartment comes apart.
Clamp the vice grips on the upper portion then using the adjustables on the lower portion twist counter-clockwise. Some brushes are more difficult than others to break the ...
This is the separated battery compartment.
Remove the battery by prying the metal contact out of the way and pulling upward on the battery.
Insert the new battery.
Bend the contact as close to it's original position as possible without actually contacting the battery.
Many posts on the web on this subject suggest playing around with the contact to try and get the switch to work properly. Personally I didn't have the ...
Screw the cover back on. When fully tightened the brush should start up.
To shut off brush simply unscrew cap a quarter or half turn.
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