- Jan 1, 1970
Stumpy said:I put in a 12v solar panel to charge up 2 ATV's and a mini tractor. Ran
some speaker wire and battery clips to charge all of them in parallel. The
tractor battery seems to not hold a charge very well. I'd like to add 3
diodes to protect the other 2 batteries in case at night with no input
current, the low battery would siphon off power.
The setup is in a very remote location with no power lines and I've
misplaced to specs for the panel and the 7amp regulator, but they both came
from Harbor Freight. The bigger battery is 14 amp-hr, the 2 smaller ones
are 10 amp-hrs.
Can someone please suggest an appropriate diode to purchase at Radio Shack
or Fry's that will handle up to 7amp and not waste too much charging
Make sure you mount these to a heat sink.
Also, not sure about your charging unit, it may be regulating voltage
to a close degree. You'll get a slight drop in voltage to the batteries
if the charge regulator does not ramp up to maintain current.
Drop will be around .7 volts.