The 5 - 1.5" x .75" cells were up to 5.5 volts and 30 mA (yes, I'm reading it correctly now). On two cells the soldering came loose. I figured that was going to happen and yep it did, bad design from the get go.
I broke-down all 5 cells and rebuilt each container (a couple were leaking water), created new Soda-Can shells, created custom connectors between cells. The coil, meaning just the shape of the copper wiring placed inside the shell, remained the same.
Before I broke them down I was using distilled water only.
Now I'm using tap water.
I'm IRO changing them and the cells bubble ...
The rebuilt cells are showing promise, volts come first easily but building the amps up takes longer.
My analog meter has a gap in reading between 0.5 mA and 1 mA where I can't get a reading. It pegs out on the 0.5 mA scale.
I hope this time I'll have something I can run the joule thief with and do a load test on.
Strange to note: I stopped the charging. Metered each cell and two cells were NEGATIVE voltage.
I thought, hey that isn't good.
I disconnect the end cell showing negative which happen to be the negative end of the battery for charging.
Metered it again.. Positive.
Hey come-on now. What twilight zone am I in? Metered the other one that was negative, positive.. Ok, whatever. the total voltage of the battery started rising after reconnection of all cells together. Well,dah.
So, check your cells often .. kinda hard to charge them if some are negative and some are positive.