Does the AGS-003 Battery replace the GBA SP Battery?The AGS-003 is the original lithium-ion battery for the GBA SP from 2003. This battery had a capacity of 600 mAh. Over time, the battery's capacity will decrease, resulting in shorter playtimes.
Nowadays, new lithium-ion batteries with a higher capacity of 850 mAh are available for the GBA SP. This will extend playtime and improve the performance of the
Game Boy Advance SP.
How do you replace the battery in a GBA SP?The
GameBoy Advance SP is designed so you can easily replace the old battery.
When you purchase a new GBA SP battery, you'll receive a mini screwdriver. With this, you can unscrew one screw to access the original battery. You can easily pop this battery out so you can place the new lithium-ion battery.
Should you only charge the GBA SP battery when it is completely empty?Lithium-ion batteries do not have a "memory effect" like older nickel-cadmium batteries. Therefore, it is not necessary to fully discharge the battery before charging it.
Frequent deep discharges can actually be harmful and shorten its lifespan. Deep discharges (down to nearly 0%) put stress on the battery's chemistry, which can lead to premature wear.