After running into some bugs with the old software, I became fed up with the messy code and decided to start fresh. The new code is more organized and the documentation is much more complete.

The user interface is somewhat simpler now as well. Instead of selecting battery chemistry and number of cells, the user just enters the desired cutoff voltage. The code for this is simpler and it also makes the load tester more useful. For example, you could discharge lithium cells to about 70% charge for long term storage by entering the appropriate cutoff voltage. You could also test supercapacitors down to 0V.

You can find the source code by following the github link on the project page