The components close to the MBUS connector also get in the way of the original bottom, if fit to the GPS module.
So I am afraid there is not really a practical solution.
Posts made by DanK
RE: M5Stack Core 2 and GPS Module
thanks for the fast response and solution! Yes, removing the battery from the bottom and then attach it with double-sided adhesive tape is actually possible. I just tried it. But on the bottom itself one will also have to cut the hooks of the battery holder, otherwise it won't fit. A bit of a tinkering. I hope one day there will be a more professional solution.
Kind regards, Dan