I've decided to create a blog entry for this mod rather than have it appear only in the original thread.
This mod entails taking an unused TR-001 charger, gutting it, and turning it into a battery/mechanical mod battery tester.
I could have just supplied the schematic, but instead did a...
A few people have asked me about the drippers I mod. I told them I would blog it, but blogging takes a ton of time to do, and so I just created a PDF document you can download.
Note that in the document, I don't cover rewicking/recoiling these drippers. Unfortunately, my video camera is...