I just got a pound of cells for $65 (after shipping)
It seems like it wasn't a great deal now, but I am new to this. The cells were "broken" They are 3"x6" 1.5w each, and I have about 24 that are almost complete (minor chips), and another 16 or so that have 2 halves. The rest are in worse shape, maybe I can make a nicad charger or something with them. I can still use it if I have both halfs right?
Hopefully I should be able to get 36 pretty good working ones in series for a cell. This in theory would be 54w, would it be possible to get 30w?
I will constantly be monitoring the cells when in use, so would it make sense to make 3v cells, then put them in series/parallel arrangements depending on the time of day? Or at least I can get the best ones in line.
Do I need a charge controller to charge a 30ah battery with these? I am looking to spend $25 or less for one if I actually need it.
Can I get a charge controller that will boost the voltage, so I can give it basically any voltage 0-30, and get a nice 13.8 out?
What is the best way to mount these cells? I can hopefully get large pieces of 1/4" glass, and glue is everywhere.
Do I really need the 2% silver solder and where can I get more ribbon to connect to the ends of the cells? Anything ordinary I can substitute?
Some of the cells are a darker blue than others. What does this mean?
Sorry I have so many questions, and thanks for any answers.