I mostly use the M12 system while on the go; however, often times I need to bring along a few M18 tools. I designed a simple packout insert for the compact organizer (48-22-8435). It neatly fits the M12/M18 Rapid Charger (48-59-1808) along with 2 M18 XC 6.0 Batteries (48-11-1865). The back section is not necessary but does keep the charger snug against the lid. The same could be accomplished with foam or other material of your choice around 15mm thick.
The author marked this model as their own original creation.