On Sat, 11 Nov 2017 11:28:38 -0500, "Jim Wilkins"
wrote:

"Jim Wilkins" wrote in message
news

Here is a good analysis of PWM vs MPPT:
https://www.victronenergy.com/upload...WM-or-MPPT.pdf
On Amazon PWM controllers go for $20 or less, MPPTs for $100 and up.


At 11AM the two 100W panels were sending 175W into the batteries
through a $20 PWM controller. I can't justify a $100 MPPT controller
to gain 25W.

Not at this level of play. When you get into kilowatts and battery
banks, they make sense.

--
Shake off all the fears of servile prejudices, under which weak minds
are servilely crouched. Fix reason firmly in her seat, and call on her
tribunal for every fact, every opinion. Question with boldness even the
existence of a God; because, if there be one, he must more approve of
the homage of reason than that of blindfolded fear.
-- Thomas Jefferson