Upgraded Multi Option Shorty 2x 18650 Battery Sled

These 2 bay 18650 battery sleds are very durable and simple to print, they stand 15mm tall and 37mm wide. For the normal 2 bay battery sled simply place the tabs over the top, for the optional 2 bay battery sled you can place the tabs either over the top or through the bottom to prevent battery damage.

Uses four keystone 209 contacts: http://www.mouser.com/ProductDetail/Keystone-Electronics/209/?qs=lQmX4aIt5iAIRjkwAc5S6g%3D%3D

UPDATE 03/20/17: Added simplified 2bay battery sled normal, and