obiwancanoli wrote:
Yes, more than 20A... also noted that full charge is being maintained without having to plug into power... minimum 12.8V+
12.8 is where solar begins charging. Full charge (with running solar) is when it goes into Absorption mode 14.4-14.6V AND stays there for an hour or two, and then Float mode about 13.6V AND stays there for a few hours or more. After charging in daytime, you should wait at least until the morning before taking your multimeter to battery. Measuring right after charging will result in over-stated voltage readings.
obiwancanoli wrote:
Spoke with the panel installer, and he noted that the 1st solar panel that was installed by the dealer included an inlet box which has a 3-tier plug-in (three 2-wire plug-ins), two of which each additional panels are plugged into. ....
He went on to say that while other systems would essentially shut down when the sun goes down, the system he was referring to would go on to continue charging the batteries
Photos, please. Sounds like parallel wiring. If this is something like 3-plug box in the Red31 post, then it's parallel and you don't need MPPT controller.
If I read the manual correctly, this is rather primitive controller. It exits Absorb and goes to Float when charging current drops to 0.5-1.0A, depending on what model you have. With 4*6V it should've been set to 4.5A. It will take a long time to drop to 1A, and as a result it will stay in Absorb for 4 hours on timer, which may or may not be what your system needs. It's better to have adjustable end of Absorb stage - both current value and timer.
