Adding a portable panel to roof mounted panel
I have a 160w Go Power panel (specs below) on the roof of my toyhauler fed to a Blue Sky Sun Charger 30 PWM CC. 208ah battery bank (two Interstate GC2 in series). Built in Onan 4000W generator. No ...
Forum Discussion
grizzzman wrote:hammick wrote:
I called Renology about their 100w briefcase system and they told me that if I put a 100w panel in parallel with my 160w panel my 160w panel will attempt to match the power of the 100w panel effectively giving me 200 watts. Does this sound right?
I just did some quick research and it sound like the Renology tech doesn't understand parallel connections. He would be correct if I was going to connect a 160w panel and a 100w panel in series. Is my logic correct?
IIRC you are using a PWM controller if this is the case you will get 260 watts but...if you are using a MPPT controller he would be correct.
Can you explain that please? I can't figure out what difference the MPPT makes. There could be a difference between series and parallel connecting the panels of course, where PWM would not work in series except with a 24v battery bank.
