https://www.aliexpress.com/item/1005005586506154.html (Golden Sun 2 The Lost Age, Gold Sun 1 are Batteryless patched)
this is a 32MB cart with Flash save as Mother 3 uses Flash save also, you will not need to SRAM Patch/Batterless Patch
1714349445
you need to solder a 5817 diode, a 100k...