LiPo adapter PCB for Game Boy Advance SP.
Also works for the DS lite (https://www.reddit.com/r/Gameboy/comments/hnpqkj/got_extra_lipos_and_makho_pcbs_fits_well_in_the/)

This PCB will allow you to use a 900mah lipo battery in your GBA SP or DS Lite giving you a longer run time than the cheap alternatives offered online.
Check out Makho's video on these PCB's if you're not already familiar with it. The video shows V1, this listing is for V2 which is functionally the same.
https://youtu.be/VjnONhSVvpA

Please note this listing is for the PCB only, you need to purchase the LiPo battery as well and solder 2 wires onto this PCB.
The battery size you need is 603048, readily available on eBay or Aliexpress

Designed by Makho
https://github.com/makhowastaken/AGS_LIPO

Please message me if you require a larger quantity and I can add an option to suit your needs.

International shipping estimates look longer than they should be eBay is estimating about 1 month.
Here's what Royal Mail quote me