Tired of loose batteries rolling around, scratched insulation wrappers, or the lurking danger of short circuits in your flashlight, power station, or DIY gear? Meet the answer: a 3D-printed, single-piece 21700 battery storage box.
Shared by Bambu Lab community creator, this sleek, square-profile organizer with a sliding lid requires zero extra hardware to assemble. It's an accessible, practical print that scales across formats like AA and 18650, giving enthusiasts a high-value mobile protection solution.
The box snaps shut with satisfying precision, sporting embossed 3D lightning graphics and clear "21700" lettering on its exterior. Chamfered edges meet lateral slide-track channels for a buttery-smooth push-pull action that never binds or pops loose.
Inside, a tight 4×2 dual-row grid houses eight independent circular silos, precision-tooled to lock flat-top 21700 cells securely in place without play.
By completely sequestering each bay, it kills terminal contact hazards and wrap friction at the source.
Measuring just 99.63mm by 53.80mm by 79.68mm and weighing a feather-light 107.3g, it beats the footprint of a soda can, fitting effortlessly on a crowded desk or slipping straight into your field pack.
This sliding 3D-printed organizer nails the messy-cell and hazardous-carry dilemma. By combining isolated bays with a secure sliding top, it ticks every box for dust, impact, and short-circuit defense.
For campers, modders, and gear techs, it cuts out the fluff to deliver instant, reliable batch storage. As desktop fabrication and custom power accessories go mainstream, hyper-functional, easily scalable prints like this will remain essential gear for keeping mobile energy safely in check.
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