I was a bit skeptical at the beginning, despite the previous speakers that the battery really at such a low price does what it promises, not least because I use the snakebyte Board instead of the Balance Board.
But the battery will totally what it promises! Fits perfectly in the snakebyte Board, has (as opposed to the previous speaker) only counts no failures or imperfect fit and you can finally play, frustrated without every two days to change the batteries, because in the middle of an exercise, the Board every other step and hardly reacts.
This super high price absolutely thumb!
Once invest a few euros rather than every two days to change four batteries and even to make the week Battery Großeinkauf -> absolutely recommendable investment.