I have a 48V Quattro, a 48V battery bank (2x24V), a 48V->24V charger (using a Victron MPPT for this), a 24V battery, a shore power connection, a second MPPT for solar.
Unfortunately, the 48V battery bank had to be replaced entirely. So I have two new 24V batteries from Victron to install.
I'm under the impression that prior to installing, I need to fully charge the 2x24V batteries individually before connecting them as the 48V battery.
My primary option at this point is to charge one from solar until it is full, then the second, then install them. Due to the size of my solar array, this could take some time.
Can the Quattro be run without a 48V battery? This would be taking 120V from the shore power, and converting it via the Quattro to 48V for the regular loads on the 48V circuit. This load would be the 48V->24V converter which I could use to more rapidly charge each 24V battery.
Shore Power (120V) -> Quattro | | 48V Bus -> 48/24 Charger -> 24V Battery
(The regular schematic would be closer to:
Shore Power (120V) -> Quattro | | 48V Bus -> 48/24 Charger -> 24V Battery | | 48V Battery