Summary

The Akaso EK7000 is a great little 4k action camera but the battery cover is a little flimsy and highly likely to break eventually from constantly swapping batteries.
So I designed a printable replacement cover in case mine snaps.
It may well fit other makes of camera, I'd be grateful if you could confirm this in the comments if it fits your camera.
No supports required but print slowly at 0.2mm for best results.
The lens cap in the photos is one of these printed with TPU ...... http://www.thingiverse.com/thing:1160621