I bought this battery as a replacement battery for my Braun Oral-B toothbrush D17 511- Oral B Professional Care 7000 and expanded with the help of instructional videos on the net (youtube) the old battery and replace it here. The ends of the solder tabs with pliers had to be a little cut, but then could be easily soldered. The toothbrush is now working again. Who owns a little manual dexterity, can save money by replacing the old batteries.
