Description
Once your Game Boy Advance SP battery has gone bad and you start looking for a replacement, you’ll find it’s impossible to find original batteries since they expire if not kept charged with a minimum level of power.
Compatible batteries may be an alternative; however, some manufacturers may misrepresent the actual capacity, or their quality may not be good enough.
If you have replaced the screen with an IPS screen or the charging port with a USB-C port, I’m sure you’ll also want to replace the battery to make your GBA SP perfect. This kit helps you to install any li-ion battery; however, the best option is the 603048, which has 900mAh, that is 300mAh more than the original!
FEATURES
- Exact shape for Game Boy Advance SP.
- Protection circuit against over-discharge.
INCLUDED
- 1 Board
- 1 Plastic adapter
REQUIRED (NOT INCLUDED)
- Li-ion battery, recommended: 603048 with 900mAh
- Phillips screwdriver
- Tri-wing screwdriver (optional)
- Soldering iron
- Tin
BATTERY LIFE
The table below shows the total hours the original and recommended batteries last. Tests were conducted on three different GBA SP units, with no sound and using the same original game.
| Original battery | 603048 battery | |||
| Min. Brightness | Max. Brightness | Min. Brightness | Max. Brightness | |
| Game Boy Advance SP (AGS-001)(1) | – | – | 28h | 14h 45m |
| Game Boy Advance SP Backlight (AGS-101)(2) | – | 7h | 20h 30m | 10h 45m |
| Game Boy Advance SP (IPS V2)(3) | 3h | 1h 30m | 7h 30m | 3h 30m |
(1) Brightness levels: 0 & 1
(2) Brightness levels: 1 & 2
(3) Brightness levels: 1 to 9
NOTES
In general, li-ion batteries already include a protection circuit against over-discharge. You will need to replace the one soldered to the battery with the one provided in this kit. Check the Installation guide PDF for more details.
The red solder mask drops on both sides of the board protect the circuit from short circuits when you solder the battery legs. This will be black like the circuit, not red.














Etsy Reviews (verified owner) –
Gigaego wrote: It works fine and it is easy to solder. My only issue is that it is slightly bulging, but that is more related to the battery I got.
Etsy Reviews (verified owner) –
Diogo wrote: Item works, just as described.
Etsy Reviews (verified owner) –
Manuel wrote: Everything is great and as expected.
Etsy Reviews (verified owner) –
Joseph Bailey wrote: Best battery mod for the GBA SP I've used so far. Love it.
Etsy Reviews (verified owner) –
Goichi Takahashi wrote: It's a wonderful product. Thank you!
digitaldarylh (verified owner) –
PERFECT! And it couldn’t be easier to install! The battery recommended to go with this is a great fit with a higher capacity. Solid recommendation!
Etsy Reviews (verified owner) –
Garry wrote: Safely received with thanks, ideal for quickly restoring life to an Advance SP and by supplying my own batteries from a known supplier I know the capacity is what it says it is on the battery itself.