A simple box with a separator for fully charged batteries ("+") and for low charged batteries ("-"). Plus and Minus can be printed seperately with different colors. They perfectly fit into the holes of the main box. Therefore kind of multi color on same level. No glue needed.

Plus and Minus should be printed in best quality and finest nozzle. Printed in 0.05.

No supports required for the box. Printed in 0.2.

Enjoy :)