How are my solar panels doing?
First time extended camping with my new panels and I would like to know what others think of their performance. I have two 140 watt panels and a Morningstar sunsaver duo charge controller. Highest amp...
Forum Discussion
You didn't say what battery(s) you have but the sunsaver should put out around 14.4 Vdc during boost or Bulk mode once the sun is up good, say 10 am. With the panels angled about 30 degrees and faced slightly east of south expect about 20% less current in winter time full sun. Once the sunsave switches to absorb you should see 14.8Vdc, current should taper down to about 1% of c/20. For a 100aH battery that's about 1 amp at which time the sunsaver should switch to float or about 13.4Vdc. This depends the battery(s) getting enough charge during the boost and absorb cycles. With two 80 watt panels feeding a pair of Exide stowaways through a Morning star TS-45 PWM CC in Dec in AZ I was measuring between 9.5 to 10 amps during boost. During Jan and Feb it ran between 8 and 9 amps.
If the panels are flat on the roof expect less.
If the panels are flat on the roof expect less.
