Hercules 12v battery power adapter

thingiverse

I needed an easy to use 12v battery pack for a project so I modified the battery holder that mrbradydennis made to fit the 12v Hercules 4ah battery from Harbor Freight. I adjusted the locking perch a bit so it's a nice snug fit and the battery locks into place with a satisfying click. For the connectors I used standard crimp on male spade connectors and hot glued them in place and then glued the cover on. Just make sure you wire the correct lead to the positive and negative, it's clearly labeled on the battery. I've used a few different types of leads on these adapters (barrel plugs, xt's, wagos) and they've all worked fine. Just make sure you size your wire properly for your project. I used PETG because I was going to use this outdoors and didn't want it to warp in the sun but there's no reason you couldn't use PLA if you were going to use it indoors. I've made a few of these now and they have held up nicely and it's really convenient to be able to swap and charge batteries easily.