C-to-D Battery Insert Adapter Description

This C-to-D battery insert is designed to let standard C batteries fit securely into D-size slots in a battery organizer or storage case. The adapter acts as a spacer sleeve, centering the smaller C battery inside the larger D battery compartment to prevent rolling, rattling, or shifting during storage.

Ideal for keeping mixed battery sizes organized, this insert is useful for battery drawers, printed battery racks, emergency kits, and workshop storage systems. The design allows C batteries to be stored neatly in unused D-cell spaces while maintaining a clean, uniform layout.

Features:

Fits a standard C battery inside a D battery slot Helps prevent loose batteries from rolling or rattling Keeps battery organizers neat and flexible Simple drop-in design Great for 3D printing Useful for home, garage, RV, camping, and emergency battery storage

Suggested use: Place the insert into a D-size slot, then place the C battery into the center opening. The adapter is for storage and organization only, not for electrical conversion or use inside battery-powered devices.