PV charge controller
Bob F wrote:
D Yuniskis wrote:
Hi,
I've rescued several small PV panels along with a pair
of gel-cels from an electric wheelchair that still have
useful life. I'd like to put together a charge controller
to run the irrigation pump "for free".
Any pointers to suitable designs? The PVs are small
so Isc is on the order of 100-200mA (though I may
double that)
What is the power requirement of the "irrigation pump"? The pumps I've used
wouldn't run long off of a couple wheelchair batteries.
I'm harvesting rainwater. So, I only need to move a few hundred
gallons at a time (i.e., I'm not watering an orchard! : ).
I'm more concerned with restoring the level of charge in the
batteries quickly enough with these tiny little PV's...
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