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RE: Question

in #solar8 years ago

Yes, but it would need to be at least 24v or 2 panels in series. Then all the losses of the AC circuits would be eliminated as well! 200w of DC power would charge the Li-Ions pretty quickly, and if they were full, the panels would help run the PPS inverter circuit. DW needs to "engineer" that into the system ;)

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they definitely need to consider solar.
before I got the PPS I had two small batteries and five tools.
I could work for several hours before the batteries went flat.
IF I had several batteries CHARGING (however slow), I could swap em out.
NEVER run out of juice.

Exactly!
You could just get like a Venom Charger, works from a DC source,
charges any voltage of any style or chemistry of battery. I think it needs 24v DC and it would charge at a rate depending on the wattage you supply by the number of panels?

wouldn't need it.
all the charging circuitry is already there.
Just need a connection.
I'm pretty sure (I used to be an electronic tech) that the voltage is stepped down from 120v to charge the leeetle bitty LIon cells (charging voltage is about four volts)

5 volts per cell is what they use, 4.2 is a fully charged Lithium Ion. I bet you could bypass the AC part and supply 25v to the charge buss and do it! :D Then the charge rate (speed) would be determined by the ampacity of the source.
Since you got the PPS for "free" it's OK to hack it, right? :D