Modular "Pipe" Battery-Pack for 4, 6, 8.. or more AA Cells

thingiverse

This is an ultra-compact modular battery pack that fits snugly into a 32mm plastic pipe for easy electro installation. Divided into segments, it can be expanded to hold 4, 6, 8, or even more AA-batteries, making it perfect for building lightweight, compact, and rugged battery packs. With watertight pipe plugs, it's ideal for outdoor and underwater equipment use. Each segment is securely attached to a M3 threaded rod, ensuring the construction remains simple yet robust. Originally designed for a DIY metal detector project on Thingiverse (https://www.thingiverse.com/thing:2478864), this pack eliminates the need for an additional housing. To achieve the right fit, the inside diameter of the pipe should be approximately 29 mm. You'll need: - Printed parts - Battery connectors (common type, available at various electronic shops) - A M3 threaded rod, about 1.5 cm longer than your plastic parts - 4 x M3 nuts - Packing cord or a cable tie to serve as a removal sling