Hello, semi-newbie here. I have a Ford e250 van with a 135 amp alternator. I am looking into installing an inverter to charge my AC200P while driving. My question boils down to “What size inverter” should I get that will provide enough input to the inverter to then plug the Bluetti brick into the inverter without damaging the alternator?
Thanks
Why don’t you charge your AC200P with DC?
Maybe using a DCDC converter
More and more I think that is the direction I should go.
Would the Renogy 20amp DC-DC charger be a good match or would an inverter be better?
I always recommend going double the inverter capacity of the expected steady load. This way you are not running at full capacity, stressing the components and generating excessive heat. The inverter will only pull the amps required for the load attached.
You will be limited to a lower wattage charging amount with a DC to DC converter due to your maximum charge rate being the voltage X the amperage output. This will work out to be in the neighborhood of 250 watts or so. If you can live with that, the DC to DC route is simpler. If you need a faster charge rate, the inverter route offers more options but requires a large enough vehicle alternator and wiring to handle the approx. 60 amp additional load.
How fast do you want or need to charge?
If you use a 12 to 24V dcdc you will get around 8,5A so around 200W Charging.
For this i would use a 20A rated DC/DC
If you want full 700W Charging yo need around 60-70V maybe with 12A
(on the 12V side this would be around 70A)
If you want to go “high power” you need to re wire your car and install new fuses and so on.