My new-to-me 6SE came with a Celestron "power tank" (which works fine) but on the Cloudy Nights forum there was discussion about using smaller battery packs that could be strapped to the fork, thus avoiding cable wrap. I have a heap of 18650 cells from defunct laptop battery packs, but no way of conveniently mounting them. Three in series produces 12v, so I looked on thingiverse and found a suitable holder to 3D print. The contacts are simply stranded wire wrapped around the posts inside the printed top and bottom caps. The power cable is from my supply of salvaged DC power cables, just a matter of finding one with the correct size plug.
It works well. I don't know how long they will run for in this situation but I suspect a few hours at least, as the folks on Cloudy Nights said that Celestron has very efficient electronics (unlike Skywatcher, for example).
Just an idea.
