Electric toothbrushes, like the Braun Oral-B, will need occasional battery maintenance in order to continue working properly. Regardless of the model or brand, to get the best spin and a deeper cleanse, batteries should be changed monthly. Keep your family's toothbrushes operating at optimum performance by swapping out batteries on the same day every month. Unlike older electric toothbrushes, today's machines allow you to change the batteries easily.
Remove your electric toothbrush from the toothbrush base.
Turn the toothbrush upside-down so the bottom is facing you.
Twist the battery cover to the left or counterclockwise to loosen it. Remove the old batteries.
Replace the old batteries with new AA batteries. Your unit will take one or two batteries.
Screw the cap back on the end of the toothbrush by twisting it to the right or clockwise.
Place the toothbrush back in the stand until you are ready to use it.