Question about Oral B Braun Oral b 3d Excel, Pro Care & Sonic Mini 7040132
I have an oral-b 1000 (3756), brand new, with a 220~240v charger (3757). I live on a boat and run a 110v sine wave inverter and 12vdc. Is it possible to modify the 240v charger to run on 12vdc? Trickle charging with through a 110-240v transformer or a 110v charger would be wastefull, but the 12vdc is on all the time.
I am looking for exact the same as this. Braun should make a 12-volt charger to their tooth brushes. It shouldnt be too complicated and very well possible as the battery in the handle is only below 6 volts.....!
Posted on Jul 12, 2014
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Posted on Jan 02, 2017
The plastic connecton has a coil in it, much like how a transformer is done. If you read up on how a transformer works its pretty much the same principle as it works on Induction. There is a coil and core iron in the end of the toothbrush and in the base, this creates AC current which inturn causes induction to flow through the coils and charge the battery. And about the reason why it is not charging is probably down to the battery being flat ( happens even when new ) or there is a loose connection when it was being transported.
Hope this helps.
Posted on Mar 22, 2011
you simply remove your old head brush, put a little ring (usually rings come separately and are different colors) an your new one and put it on the handle - it will hold.
Posted on Dec 30, 2010
Test the voltage of the charger base. This is a simple method to see if your brush is getting power from the base. Touch the metal connectors with the voltage tester. This should light up the tester. If not, it is losing electricity somewhere within the base.
Posted on Apr 24, 2012
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