I’m trying to spec a system using all Victron kit and looking at the 100/30 MPPT charge controller. Does that controller accept 24 volts from solar panels and charge 12 volt batteries?
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Can I use 24 volt solar panels to charge 12 volt batteries through MPPT Controller
Yes it does. It can accept up to a maximum of 100V in solar to charge 12V batteries.
To charge 12V batteries it needs Vbat (12V) + 5V to begin charging and the solar must be Vbat +1V to keep charging. Those solar panels Voc are probably more than 24V so you should be fine!
On my van I am using a 75/15 with a single Victron 24V Mono 200W panel which has a Voc of 43.2V and it works amazingly.
What panels are you thinking of running on the 100/30? As its probably best suited to a big single panel like the 305W or 360W, or two of the 200W or 215W panels, as you can run upto 440W on it (more if you want, but it will limit input power to 440W)
Some further into if you are deciding what to get... I only got a BlueSolar and added the Bluetooth dongle at a later date, but unless you need the dongle on a bit of lead to place it somewhere for a better signal... and unless its part of a more complex system... just go for the SmartSolar so it has Bluetooth built in.
If you aren't going to run more than 220W of solar just go for something smaller like the 75/15, as the other bonus is that the smaller ones have load terminals (which the 100/30 doesn't) so if you want a small simple setup, just run all your loads off the load terminals (apart from some stupidly large inverter) and you can then view the amount of power you a drawing in the app, and also has a low voltage cut off to stop you damaging the battery.
