CF263 Battery tray
To suit 45mm x45mm mounting holes of the "CF263" from MyRcMart http://www.myrcmart.com/product_info.php?currency=AUD&products_id=7892.
18mm wide slot for a small scorpion battery strap or similar.
23mm wide walls to suit 1500mAh Nano Tech.
Mine is hiding a naze32 under 30mm nylon standoffs.
UPDATE 26 10 2014
After extensive testing/crashing, i beefed everything up a bit.Check the 3mm version if you fly like me.