Victron - Phoenix Inverter 48/500 120V VE.Direct NEMA 5-15R [PIN485010500] Blue Smart Chargers IP65 with DC connector - AU/NZ Plug The solar charger ensures that

The solar charger ensures that the batteries are being charged by energy harvested from your solar panels

2V with various capacities

Pre-alarm signal: provide a warning before the system shuts down due to -for example- a low cell

The adaptive feature will automatically optimise the charge process relative to the way the battery is being used

Victron - Phoenix Inverter 48/500 120V VE.Direct NEMA 5-15R [PIN485010500] Blue Smart Chargers IP65 with DC connector - AU/NZ Plug The solar charger ensures thatInverters allow you to power domestic equipment requiring 230V 120V AC using 'leisure' or 'automotive' batteries rated at 12V, 24V or 48V DC. Product Documentation