Charging power stations with Pro power assist

[MVI]

I don't know which welder you use; welder loads vary all over the place on the various styles and models. Even a small welder requires a 120V 20A circuit or 240V source. I'm not up on welders in general.

However, an inductive load like a huge motor or transformer input requires a huge surge current capability; unlikely to be supplied with a standard inverter. You could figure that if the load is rated at 2000 watts, you need close to 4000 watts capability (200 % surge) to avoid shutdown of the computers in the inverter or welder. And this varies all over the place as well. Different welders would act differently to the source.

As @Stainless03 points out, an inductive load works best with an inductive source. The inverters that are most popular would struggle with the same rating as the source. I installed a 2000-watt inverter in my bed for various purposes, (no welder) and it is a true sine wave inverter. It can take a surge such as a motor without issue, but my "source" is a separate bank of batteries and running a 2/0 short wire to supply current to it. It won't last long with a heavy load but is sufficient for what I use it for.

A huge inverter requires a huge source to run efficiently. If you do get another inverter, consider a separate bank of batteries to run it. Use the heaviest wire you can get on the terminals (4/0) to have minimum drop at the inverter itself. A drop in voltage at the inverter can cause it to shut down.

It is a Miller 211, and it will run just fine on 120V 15A wall plug.
It is capable of 120V/240V input, comes with both plugs, the latter voltage is needed for welding > 0.25" thick steel efficiently

the Miller runs fine on on a WEN 4000 RV generator, but that gen has a 120V 30A RV plug on it so plenty of juice.

I think you hit the nail on the head with 200% surge, and that is why the F350 pro plug in the bed ain't cutting it.

 

[Fozzy]

I keep my EF Delta Pro in the bed of my truck for the portable cooler fridge. My plan is to install the EF Alternator charger on a board on the side of the bed in front of the driver wheel well space. Then the connection to the EF DP is simple and the routing of the supply cable to the battery is relatively easy by running the cable under the truck along the from and up to the driver's side battery.

Depending on where your fridge and EF battery are located, you could do the same thing with the EF alternator charger and then you could run a cord from the back seat area through a grommet in the floor under the back seat and up to the EF charger. This would require much less invasive fishing of the cable within your cab. Or you could mount the EF alternator charger behind the back seat and again just feed the cable through a floor gromet to it without much trouble. Just my two cents. BTW I love the unique capabilities of the EF charger with the back feed and maintenance options.

It's a no brainer to get an Alt charger even if it takes you all day to install it.

Just an FYI on the EF Alt Charger. It gets its power from the Delta. So if it does not see input from the alternator for several days it turns off and can't be restarted through the app. You have to use the physical button on the Alt Charger. I am sure this is just to reduce the overhead power consumption at idle. So keep this in mind when you pick a location for it. I mounted it on my Retrax bed cover box in my F-150. It was a pain to get to. For the Supeduty I ran cable from the battery to the passenger side front bed corner. Mounted distribution blocks for the power and ground and wired the Alt Charger from there so I have plenty of cable to have the Delta 2 Max at the back of the bed and enough cable if I want to have it out of the truck charging. Will be using it to run the StarLink as well. I used the Built Right panels and their molle panel nuts. Almost done with it.

Also the EF Alt Charger will not directly plug into his R2P. It has an XT60i and the Alt Charger has an XT150. You can make a conversion plug, but that's why I used the Bluetti in my work truck. It has MC4 plugs on it and it will hook to the solar input cable adapter on everyone's power stations. So if I through one of my Bluetti power packs in the truck I can still use it to charge no matter the brand. EcoFlow says they will offer the XT60i plug conversion, but we have yet to see it.