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Building a Clean, Modular 3D-Printed Battery Box Using a $3 Harbor Freight Ammo Can

Building a Clean, Modular 3D-Printed Battery Box Using a $3 Harbor Freight Ammo Can

by Allen Mowery | Apr 16, 2026 | How-to, Radio

I had a couple of 7Ah LiFePO4 batteries sitting on the shelf doing nothing, so I finally got around to building them some proper smaller boxes. These aren’t meant to be monster power stations — they’re compact, lightweight, and useful for a bunch of...

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