Bought this little kit for a few dollars on aliexpress awhile ago figuring it was an interesting project. I would not recommend it and I’ve already revered back to stock.

1. It makes the cartridge bulge.
2. The long term reliability is questionable (my chip seemed like a rebadge).
3. It will not work correctly on the analogue pocket (and possibly the FunnyPlaying FPGA GBC).

Also I wouldn’t use clips like this for the battery when you can use the HDR retainer. This was done years ago and I don’t have any more of those on hand to replace it.