morning everyone,
Hopefully a quick q please.
I have 2 MPPT chargers attached to a multiplus 12/3000 and 4 x 110 Ah Victron 12v batteries. The small one is a 75/15 with 2 small 80W 18V panels, and the large is a mppt 150 70 with 2x 405W 24V panels.
Our batteries are not at 100% full, and the smaller MPPT will happily bring in as much wattage as it can, but the larger MPPT sits at 0.1A.
My question is this - what is the mechanism/logic/setting that results in the larger MPPT (with larger panels) providing a disproportionally tiny power input into the system and can it be dynamic?
Images taken roughly at the same time.
Learning lots here, and grateful for all comments & views.
[Update and resolution] - the system was set up in the engine compartment, and it transpired that the connection after the 100A fuse to the common busbar had a nut that had wiggled loose after many hours of engine use, but was hidden by the plastic busbar protector.
This meant that it was powered in the hours of daylight, but nothing was getting to the battery.
After several hours and some rude words I found and rectified this - it had not been installed with a second nut or using Locktight to prevent this…
thanks
Martin
