Got it built from a local modder, battery has been holding up great, ~6 hrs with default brightness on, haven’t played until it dies though so maybe more!
Not OP but boxypixel is a company that manufacturers alluminum shells and buttons for consoles. You buy directly from them. They also stock a lot of the screen and other upgrades. (USB c charging is the best) I've done their GBA and their Gameboy color and have been thrilled with the results.
They’re absolutely stunning, yeah! I got this from a local modder, built. I don’t think I have the skill to actually do it myself, haha but I’d love to, been thinking about fixing up my OG GBA so we’ll see!
This one has the USB-C mod! I got a generic SP charger today just in case too