Li-Ion Rechargeable Battery Replacement for Game Boy Advance SP

I installed this in a Classic NES SP after I noticed the original batter was starting to swell. It was a very tight fit, but I angled in the contact-side first and forced it in with my thumbs and I was able to screw the door back on without issue. I imagine getting it out is going to be rough, and god help me if I don't get it out before this one eventually swells. Still, it does the job.

Li-Ion Rechargeable Battery Replacement for Game Boy Advance SP

I’ve only just got it a while ago, but have not ran extensive tests. However, for what I’ve seen so far, a great replacement if your old battery gave out on you. It does have a tight fit, but nothing that would cause issues.

It’s a really tight fit on the OEM, if you are going to use it on the OEM, don’t. Batteries expand a little when charging or when stressed, the expansion is minimal but in a tight fit doesn’t seem like a good idea, not to mention SP batteries the OEM as well included get permanently expanded after some time. If people heard about the Samsung Note 7 situation of exploding batteries, this was the reason, it was in there really tight, i don’t think it will explode, but why risk it.

Li-Ion Rechargeable Battery Replacement for Game Boy Advance SP

Fits tight but other than that 10 out of 10