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Looks like it takes some effort to get the batteries out but would you need to reglue it after you remove it? What happens if you don’t reglue? Thanks
If you use a little Methanol Alcohol along the gap of the case and the battery it will break the adhesives bond so you can remove the battery. Apple uses a glue gun to attach the battery. In their newest iPad system they changed to 3M adhesive tabs which I think is a cool idea! iPad Pro video. I’m wondering it these would work here as well. Otherwise you’ll need to clean off any remaining glue and use glue gun adhesive again. Lastly, you must hold the battery down.