Added a case on top of the batteryplate.
 Useful to use your 12v car appliances when you dont have a cigarette socket. For inflation of pool and beach stuff, bike tyeres, coolers.

Need heat inserts to m3 (5mm outer diameter) to put together.

Step down Converter: https://s.click.aliexpress.com/e/_DdHwVR1 

14awg Wire

crimp connector: https://s.click.aliexpress.com/e/_Dl0BSDZ 

Screws: https://s.click.aliexpress.com/e/_DD25sXz

Heat inserts: https://s.click.aliexpress.com/e/_DDOhLLv