6V Power Bank with 4 AA batteries
thingiverse
This is a small power bank with no electronic regulation using 4 pieces of AA batteries. Most USB devices can sustain 6V, some are even "happier" with 6 than 5. Better be safe than sorry, there is an indication in the side decorative piece that says 6V. The decorative pieces fit into the corresponding dents and should be glued in place. The lid is designed to snap into place. If it is too tight, the edges should be filed off a littlebit. If it is too loose, a bit of insulation tape should be used to make it tighter. Components: -standard back-to-back 4 AA holder -standard toggle switch mounting in a 20mm diameter hole -female USB socket (salvaged)
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