3D Printed Universal Battery Capacity Tester


Well, you don't really 3D print the entire battery tester. That would be neat though.


This is a actually a 3D-printed casing for the ZB206 battery capacity tester.


What you do print is an integrated battery holder (rubber-band-powered) that can hold an AAA, AA or 18650 battery for testing. So it is easy to pop in any of those batteries and begin testing its capacity immediately.


The ZB206 is mounted to the casing using 4 M3 x 6mm screws. There are 4 bolts that come with the board. I repurposed 2 of them as battery terminals, as shown in the photo.



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