Reddit reviews Hydra Performance® Game Boy Advance SP Replacement Battery [GBA SP]
We found 1 Reddit comments about Hydra Performance® Game Boy Advance SP Replacement Battery [GBA SP]. Here are the top ones, ranked by their Reddit score.
![Hydra Performance® Game Boy Advance SP Replacement Battery [GBA SP]](https://m.media-amazon.com/images/I/41pThaqE7pL.jpg)
3.7V 850mAh Li-ion BatteryComes with screwdriver to open the battery cover
I've had this one for about a year and it's doing fine.