Spaz wrote:was there any velcro on the battery for the straps to grip? just slid out from under it?
that looks fixable too, just wick in some thin

.. strip the covering and i bet it doesn't look that hard.. the CF held up

yep, there is velcro on the back of the battery and the front surface of the mount. The mounts worked great and were rock solid, I was just being a dumbass and trying to slide the packs about 1/2 way forward on the mount to shift the cg a bit (she was climbing inverted) to see if I wanted to move the mounts forward and it didn't have enough velcro surface contact to hold it from sliding out.
Always open to some other ideas for mounting the batteries though.
Next time if I use the same mounts I'll put velcro on both sides of the pack so it will be held front and back as well as the strap.
The cf held up for sure. The fuse would probably not be that hard to fix, its the wing that is beyond my capability - might let ryan_m give it a try