Charging Bluetti AC200 with inverter

[barryngeorgia]

I want to connect an inverter directly to my van battery to charge my Bluetti AC200 with B230 attached. If I get a Victron 12 800 would I be able to use the wall charger that came with the power station? What size breaker should I put in the line from battery to inverter? What gauge wire for a 10 foot run (20 ft round trip)? If I can't figure this out do I have any business trying to do this?

 

[DaGoose13]

What size is your van battery?

I'm thinking this isn't a good idea as the van battery will probably be undersized compared to the AC200.

 

[barryngeorgia]

800 CCA. I was thinking it had more to do with the alternator output since the inverter would only be on with engine running.

 

[DaGoose13]

Gotcha, so you are wanting to charge the AC200 from the altenator intead of the battery.

I'll have to bow out of this one as it's beyond what I have done. I do believe you can charge the AC200 via the cigarette lighter port, but it will take a long time to charge up fully if memory serves.

 

[barryngeorgia]

Maybe someone else will jump in. I see where Light Harvest Solar is selling this kind of setup as a kit with the power station that they have rebadged from Bluetti. I'm just trying to figure out how to safely do this myself.

 

[solar8484]

Your van alternator should be able to run 800W inverter without issue and it should be able to power the bundled AC200 wall charger (<200W?).

 

[barryngeorgia]

My other question I'm trying to figure out is the size breaker to put in the wire from starter battery toward the inverter as well as the wire gauge for a wire round trip of approximately 20 feet. 2AWG with a 100 amp breaker???

 

[solar8484]

That should be fine for running a 200W charger.

 

[barryngeorgia]

The Bluetti AC200 is a 2000W/1700wh power station.

From the label on the charger specs are:
Input: 100-240V-50-60Hz 5A 500VA
Output 58.8V = 7.0 A 411.6 W
Does this still sound fine as described?

 

[solar8484]

It should be fine but check the docs for the inverter. You may want to shorten the battery cable or use a larger gauge to get the better efficiency.