Battery tester

thingiverse

I'm building a battery-tester attachment for my trusty Harbor Freight Cen-Tech multimeter, the one that comes with their giveaways from time to time. I really love how this tester evaluates batteries under load - it's super helpful! The banana plugs used in this project are some Chinese Ebay finds, but I've lost track of who I bought them from, so you might need to get creative and find an alternative plug. If you're interested in checking out the exact type I'm using, here's a link: https://www.ebay.com/itm/10-Pack-4mm-Gold-Plated-Audio-Speaker-Wire-Cable-Screw-Banana-Plug-Connector/253642666573?hash=item3b0e47f24d:g:Kk4AAOSwKJ9bLxOt Even if you can't replicate this design exactly, I hope it sparks some ideas for an even better battery tester. I'm still brainstorming improvements myself. If you're interested in seeing a revised version of this project (Rev B), check out https://www.thingiverse.com/thing:3710762