MPPT, PWM or whatever, it all depends on the application.
Since I knew that a basic PWM charge controller would keep my backup bank charged up,
I decided to skip MPPT on my little system..
At the time, I think the MPPT version of my TS-45 was about $300 more..
For $300, I could have ordered another panel..
The nice thing about the TS-45, I can turn off the PWM and just let do slow
on-off charging and not have any RFI hash.. (Not good for ham radio reception).
When the pack is really charging during sunny condx, the
PWM % on the display changes to
BULK.
Which means full power to the bank..
