I have an 85W solar panel. Its maximum Pout is at 18volts 18V@4.7A. At
the moment I have this connected straight to a battery.
The max charge currents I am getting is about 4.7-5A @ approx
12.5-13.5v, so 65W if I'm lucky. Basically I'm wasting a potential 20w
I had a thought that if I could make a switcher or some kind of DC-DC
converter that was able to operate on 18v in, drop this to 14v out I
would make much better use of the power generated by this panel.
It seems such a waste to connect this directly to the battery where I am
getting only around 75% of energy available. I may also be getting
another panel, in which case perhaps a 36v to 14v DC-DC converter would
possibly work better? or if not ill just run both in parallel/
Any help or ideas would be VERY welcome.
16 years ago