Having issues charging my EcoFlow battery via bed outlet.

I've installed the 400w anytime mod.

The light on the button shows a solid green light, which should confirm 400w are going through, right??

Troubleshooted the following:

-Truck on (running) and truck off (accessories on / double tap PTS).
-Changed the EcoFlow AC charging watt input via the EcoFlow app to 400w, 300w, and the lowest 200w.
-Swapped AC cables.
-Confirmed power in the bed is available using other AC accessories. However, I'm unable to test with accessories that require 100-400w, as they are not mobile to bring to the truck.

Am I missing something? Can anyone shed some light? Any other methods I can troubleshoot?

Edit: I was able to confirm power with my

$124 Milwaukee M18 Cordless Lithium-Ion 6-1/2" Circular Saw - 2630-20 - ( MILWAUKEE ) - BARE TOOL

Milwaukee M18 charger. 120V at 2.1amps = 252W

 

@Veggie Taco . EcoFlow needs pure sine wave to work. Bed outlet has modified sine wave. Watch this. If you plan to do this, post pics and guide on how to if you don’t mind. Tnx

https://youtu.be/s_-9vj-hF1M

 

Thanks @bulalo , I also reached out to EcoFlow directly just now and was told the same haha.

This was only a temporary solution til I get my dual battery/solar setup.

Looks like I'll be getting it a lot sooner than I thought LOL.