I have a question, can an MPPT
controller increase voltage ? So for example , if one had a 12v panel but a 24v battery
, would the MPPT
controller take the panels
12v output and increase it so as to charge the battery
at 24v ?
I know it works the other way around, i.e. if the panel were putting out at 18v, and there was a 12 v battery, then the MPPT controller would reduce this output voltage to meet battery voltage (12v ) .
If it is the case that the MPPT controller does increase 12v output to meet the demands of a 24v battery, what is the downside, presumably a reduction in Amps being put into the battery ?
This question arises because I have a 24v battery bank, and I am trying to decide whether to ;
a. get 12v panels
and keep them at 12v, utilising an MPPT controller to increase the output to 24v, or,
b. to wire two 12v panels in series to get 24v....or,
c. to buy a 24v panel at the outset
I have space on the boat for two good sized panels (I mean dimensionally good -size Length x width )
d. then to confuse the whole issue I read on this forum a lot of people have each panel connected to its own standalone controller so that should one panel be shaded the other can keep functioning.
e. Maybe two 12v panels connected in Series/parallel.....is that a good idea ? what are the pros and cons ?