(06-02-2015, 22:45)Brett Wrote: The controllers I have opted for now are similarly priced (I think). I've been buying the 5A model - on ebay the item number is 261392830593, http://www.ebay.com.au/itm/261392830593?...1439.l2649
According to this fellow that may not be a true MPPT charge controller:
CMTP02 – disassembling this solar charge controller
This one would seem a bit more promissing: Solar Panel Battery Regulator LCD 10A 12V/24V MPPT Charge Controller Three-time
Product Homepage
Manual here
But the peculiar way they use to describe it makes me think it may almost certainly be just a PWM with a twist. They do not seem to provide maximum accepted voltage as well which is odd.
MPPTs work by tracking the I-V curve of panels and picking at any given moment the best volts/amps compromise.

