Product too large. Would not fit in battery compartment. Had to remove some of the green paper wrapped around it. Still was way too snug a fit. I will not use this battery.
Li-Ion Rechargeable Battery Replacement for Game Boy Advance SP
The battery is a tight fit and can require quite abit of effort to wedge out with a flat screwdriver. Still, it's a good replacement for my original battery that is about 17 years old at this point.
I do have an issue with the way the battery performs. After a full charge, it will regularly change the green power led to red during gameplay and sometimes revert back. Because of this, I am unable to judge when the battery is low on charge like how it would used to be on the original battery.
Battery works, holds a charge and all that, its a tight fit in the OEM shell and a pain to get out so buyer beware.
I have an OEM shell. This battery is ever-so-slightly bigger than the original, but it did snap in place. The original pretty much just falls out.
It works but, it doesnt fit in the OEM shell. It fits in the aftermarket one though.