Self Regulating micro PV system [RE-wrenches]

[Bob-O Schultze, Electron Connection]

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Dan and All,
So called self regulating PVs were and are a cruel joke. Less than 36 
cells just means the power levels roll off sooner and hardly work at 
all in lower light levels. Yet, a 33 cell module still has enough 
voltage to overcharge a full battery. That's probably why nobody 
makes the culls anymore. I don't believe I've ever seen a 30 cell PV. 
Use a CC.
Bob-O

>I saw this in an old Siemens installation instructions, If you wish 
>to use a pv module on a wet lead -acid ( I am para-phrasing now), 
>they recommended  a panel with now more than 30 cells in series - 
>lower rated voltage - and to make sure that the maximum charge rate 
>for the panel to the ampere-hour rating of the battery bank in 
>question was a C/200 rate or less
>	In R. Perez's classic "Complete Battery Book", (TAB Books), I 
>also believe he says something similar, that's where I  1rst saw a 
>rule of thumb guide for self regulating batteries with a PV module.


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