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Old 03-27-2010, 05:03 PM   #42 (permalink)
EV test pilot
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Join Date: Jan 2008
Location: Oconomowoc, WI, USA
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Electric Cycle - '81 Kawasaki KZ440
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Now the trouble is how to build a high voltage cutoff for the solar panel so I can't overcharge. (and no I don't want a 60amp 120v MPPT charger that uses half an amp to handle my 1 amp panel trickle charging my batteries)


Here's the charge controller I am using with my Kaneka 60watt panel:
Xantrex C40 Charge Controller

Since it's only one amp, you may not really need a controller - It would take 100 hours to recharge a 100 amp hour 48V pack..... Just let it pump.

If you plan to leave the vehicle in the sun for days at a time with the solar running, I suppose you should have something. The trouble with those Kaneka panels is that you can't use cheap 12v accessories with them!
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