Quick update...
The project is not dead! I've collected over 130 NiCd cells ranging from 36-42Ah each (1.2v). I hadn't had a chance to work on the project in the last couple months, mostly because of a change in jobs. Left the aviation field for something more profitable, but before leaving, I took full advantage of my flight benefits. Traveled during all my free time, using up all my remaining vacation time as well. Finally starting to get a bit settled in my new job now, so I felt some motivation to get back to work. This evening, I spent most of my time cleaning out some clutter in my garage so I actually COULD work on something. Once that was to a point where to garage was usable again, I grabbed my variac, two block diodes, a 3-prong plug, and some appliance wire. With these items, I started putting together what will be my battery charger. I bought a variac that claims to have a voltage output of 0-140vac with a 120v input, but I can't get any more than 120 out of it. Perhaps I'm doing something wrong, not tapping it right or something. I need to get over 120 if i'm going to charge a 120v battery pack.
anyway, after losses through the rectifier, I'm getting 106-107vdc. Definately need to bump that up unless I want to drop my pack votlage to 90 or so. Which I don't want to do.
Next on the list, make bus-bars for the cells from copper pipe, run the cables, order replacement parts for my motor control (fried what I've got, trying again), make cable ends... the list goes on.
__________________
|