This is a remix of http://www.thingiverse.com/thing:297623
I wanted a holder for my battery to stop it sliding side to side in the velcro straps but also wanted to keep the weight down.
I cut the original in half and joined it to itself to give two strap points and no top.
I fitted it to the base of my quad with cable ties.
works great for my Turnigy 2.2 2200mah 3 cell 11.1v battery's
battery size is 34mm wide by 107mm long and 25mm heigh but that does not matter as there is no top.
total size is 115mm x 41.4mm x 13mm.
The Tray weighs 14g and 18g with velcro straps
The Gopro mount in the pictures is here http://www.thingiverse.com/thing:602678
Hope you like it as its working well for me on my quad .
I printed mine in red ABS at 0.25 layer height and 30% fill.
I attached to the base of my sk450 with cable ties, you can see in the pictures that I drilled a hole in one side to get one of the ties in.
I mounted my battery slightly back from centre to allow for a gopro that will be mounted at the front.