Good morning everyone. I have a Ford E450 with 2 alternators that give 5000w of charging to the battery bank, and I also have 4000w from the inverter/charger. I need both to work together so the charging time will be less. What happens is when I start the inverter charger, both alternators give less charge amps, and the battery bank only gets 5000w (200Ah * 3 25.6v lithium batteries + quattro 8000w/24v).
Probably the voltage at the battery terminals is jumping to a higher value and the alternators, then, are throttling.
Or, the vice-versa, the inverters see an increase on the batteries voltage and it’s throttling or holding charge.
Try to increase the charging voltage on the inverter to see if this is true, but be careful to not exceed the battery characteristics.
And use proper sized wires: desired 9000W at 24V are 375 Amps.
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What is the battery specification as 200A into a 200Ah battery would make me think the battery is blocking anything over.
He said that are 3 batteries…
Desired 9000W at 24V are 375A, divided by 3 batteries, 125Amps per 200A battery.
wheh i turn on the charger from the inverter the dc changing goes down and only pass to the batteries 186A
My oversight indeed.
Yes, and those amps are all coming from the alternators it seems…
The inverter is not charging at all.
What are the inverter settings as charging voltage?
And the inverter seems to not be connected to grid from your picture.
From where do you want the inverter to charge? From solar?
Do you also have a solar MPPT? If yes, also tell us its voltage settings.
Which type of batteries, lead, lithium, BMS type if lithium. The battery voltage in your shot shows exactly 27.0V which is a float setting. Do you have an alternator controller. Is your alternator a modern smart alternator. The system may be controlling to that voltage. Give us a screenshot of your charging settings
Do you have an AC shore supply or generator connected to the inverter? Without it the inverter won’t contribute to any charging, only the alternators and available PV.