Triple 18650 battery case, rugged, waterproof

Has three screw top plugs that seal using a standard -117 O-ring. Two designs: Protected and non-protected batteries. Top plug fits both versions.

A small piece of foam or rubber can be placed into each cap to prevent batteries from rattling while still allowing O-ring to seal properly.

Shown in:

• 0.15mm layer height, PLA, 15% infill (all black version)
• Adaptive layer height, PETG, 15% infill (black + green version).

2024-3-21: Added non-protected version and improved existing model by removing center hole and reduced overhang chamfer slope.