Pickle Power GBA SP Battery Replacement, 900mAh Rechargeable Lithium-ion Battery with Tool Kit Compatible with Nintendo Gameboy Advance SP

Great battery so far! It fits perfectly and works well. So far I've gotten two or three more hours out of this battery than I did with the aging OEM battery for my GBA. Very good price for such a solid battery.

Battery last forever. I love it. Much longer than the original.

This is a very good quality battery. I haven’t really figured out the amount of time it takes for it to become a dead battery, but I can say that I’ve been max using the game boy for around two hours straight , and it has not shut down yet. Charges very fast, and it was very cheap to get. It even came with its own screwdrivers. Definitely would recommend.

Old battery was swelling this one dropped right in and holds a good charge

Batteries last so long. Easy install.

they’re alright, good for their value. they fit what i needed em for and they charge pretty quick, too. i tested these batteries against all of my old OEM batteries and found that these new batteries hold about 4 hours of charge using an IPS screen compared to ~2 hours with the old, worn-out batteries. while it’s an improvement over an old, bulging battery, if you want to sit down and play for 8+ hours on one charge i’d look elsewhere. a lithium polymer battery may be a better choice.

Good tools

Works great! Charge fully before using