dominoconsultant
New Member
I am the proud new owner of a BLUETTI AC500 with two B300S battery banks for my electrical refit of a VW Crafter motorhome. I had a couple of issues straight outa the box with charging but the password enabled me to fix those default/factory settings.
What I'm looking at now is the DC charging options from the alternator.
I don't want to use the two PV/DC charging leads to do this. I'll be setting up two larger capacity solar arrays so I'll be dedicating those two (each max 1500W) for that purpose.
What I'm thinking of is running my 1500W Pure Sine-Wave Inverter straight from the alternator via a voltage activated relay that connects the circuit after the starter battery is fully charged. So once the voltage reaches 14.2V it would connect through the inverter.
The inverter would then provide 240V (Australia) through to the Grid charging port of the AC500.
Some questions:
1) Am I crazy;
2) Where should I put fuses in this feed;
3) Do I need to introduce a "buffer battery" in this circuit considering that the starter battery sits between the alternator and the voltage relay;
4) Are there alternatives besides a pair of victron (or other) DC-DC charge controllers pumping into the DC charging circuits. I really don't want to have to toggle the unit between "PV" & "other" every time I drive and want to charge.
What I'm looking at now is the DC charging options from the alternator.
I don't want to use the two PV/DC charging leads to do this. I'll be setting up two larger capacity solar arrays so I'll be dedicating those two (each max 1500W) for that purpose.
What I'm thinking of is running my 1500W Pure Sine-Wave Inverter straight from the alternator via a voltage activated relay that connects the circuit after the starter battery is fully charged. So once the voltage reaches 14.2V it would connect through the inverter.
The inverter would then provide 240V (Australia) through to the Grid charging port of the AC500.
Some questions:
1) Am I crazy;
2) Where should I put fuses in this feed;
3) Do I need to introduce a "buffer battery" in this circuit considering that the starter battery sits between the alternator and the voltage relay;
4) Are there alternatives besides a pair of victron (or other) DC-DC charge controllers pumping into the DC charging circuits. I really don't want to have to toggle the unit between "PV" & "other" every time I drive and want to charge.
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