Forum Discussion

obiwancanoli's avatar
obiwancanoli
Explorer
Apr 23, 2018

Replacing current 30A with MPPT controller - make sense?

Some of you have followed other posts of mine re: solar, and satellite, so hope this additional inquiry elicits similarly helpful info... If I knew then what I suspect now, I'd have had the Dealer ...
red31's avatar
red31
Explorer
Apr 25, 2018
mike-s wrote:
red31 wrote:
going from PWM to MPPT with series panels will be a big increase in charging. Like from 8A to 24A!
Uh, no, not even close. Show your math, which is wrong.


No math, 'Given' 3 panels.

Do the math and add the 3 IV curves in parallel and series.

What is the power/current @ battery voltage. (24A vs 8A).

24A from 0-16v for parallel
8A from 0-48v for series

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,340 PostsLatest Activity: Nov 30, 2025