For 4 years, he has been using such a set as in the picture below the brush plus irrigator Braun Oral B 3756. Unfortunately, after so many years the performance of the battery in the electric toothbrush has already dropped and it was good to replace the batteries in it. In the service, they would sing PLN 160 for this exchange so it does not make sense.
My question is if you can open this bottom of the brush and change the battery yourself? Such batteries are available for around PLN 25, so you can save a lot on replacement.
My question is if you can open this bottom of the brush and change the battery yourself? Such batteries are available for around PLN 25, so you can save a lot on replacement.
