Trouble charging with Honda eu2200i for 2022 Airstream

[MarvinJr]

I have a 2022 Flying Cloud with the smart plug and while charging with two eu2200i (main and companion) the smart plug produces a blue light and red light indicator (reversed polarity) when plugged into Airstream.

I unplugged once I saw it and the generators worked fine yesterday.

When plugged in today, I initially reversed the black and red connectors on the companion unit. I corrected it immediately, but the charge on the smartshunt app was running only at 150 watts or so.

Any ideas?

[s1000pre]

How is it with just one generator? I only have one EU2200, one EU2200 will power the converter to charge.

[MarvinJr]

Thanks.

I am using the bluetooth app by the way.
Tested with only one and then the other as well. Roughly 150 watts no matter what. Certainly no synergy with two units as expected.

I thought the reversed polarity might mean I need to reset a breaker or replace a fuse, but I can't see that anything is tripped.

[rd tighe]

If you have a surg protector don't plug it in if you have a built-in surg protector you will need a way to lock your floating ground. They sell a fix or you can make one. Read http://www.rvdoctor.com/2012/10/my-h...er-my.html?m=1

[MarvinJr]

I understand and looked into that today, but everything worked well yesterday before I connected the parallel cables incorrectly on the companion unit.

I appreciate the comments.

[Al and Missy]

One 2200i is more than adequate to charge batteries. A 50 amp converter would draw only about 5-10 amps from shore power or generator. If the batteries were partially charged, they might only take 12 amps or so (150 watts).


Regarding potential damage, the neutral line in these generators is floating. Since the generators are started and run independently, the phase between the two could have any value. I doubt any damage was done.

[MarvinJr]

That is encouraging. Thanks. The batteries were pretty low yesterday and the voltage moved pretty quickly from 12.7 to 13.5 and the target for the Battleborn Lithium is 14:2.

One of my generators ran out of gas last night, so I stopped by to finish them up today and then ran into the issues I mentioned.

I'll get the ground neutral plug and retry it tomorrow. I may also check the fuses on the back of my converter to make sure I didn't create a problem there.

[JohnTF]

Originally Posted by MarvinJr

I have a 2022 Flying Cloud with the smart plug and while charging with two eu2200i (main and companion) the smart plug produces a blue light and red light indicator (reversed polarity) when plugged into Airstream.

I unplugged once I saw it and the generators worked fine yesterday.

When plugged in today, I initially reversed the black and red connectors on the companion unit. I corrected it immediately, but the charge on the smartshunt app was running only at 150 watts or so.

Any ideas?

Quoting so I can catch / respond to a couple issues .
Have guess what the " smart plug " is ? One of the shore power monitor devices ?
Then when you mention charging batteries - is that through the 12vdc - supply from generator , or battery plugged charger plugged into 120vac .
Then it depends on SOC = State Of Charge of battery , the battery may only be drawing 150 watts ?

[1StreamDream]

Originally Posted by MarvinJr

That is encouraging. Thanks. The batteries were pretty low yesterday and the voltage moved pretty quickly from 12.7 to 13.5 and the target for the Battleborn Lithium is 14:2.

That seems a very likely explanation ... since your trailer is newer, it almost certainly has a converter/charger that is optimized for the lithium charging profile, and the closer you get to full charge, the less amps you pump into the batteries. The more depleted they are, the more amps the charger will provide (higher/faster charging rate). Maybe nothing at all is wrong with your honda units or connections.

[uncle_bob]

Hi

A lot depends on exactly which converter / charger you happen to have. Without that info, we're all flying in the dark. There are a *lot* of stock units that have a 50A label on them and only put out (at best) 30A at 12.6V. Yes, that's a bit more than 150W.

Unlike lead acid batteries, lithiums will take a lot of current right up to full charge voltage. At anything under 13.5V, you should be able to put 200A of charging current into a pair of BB's. That's not to say this is a great idea, only that they will take a lot of charge current.

Bob

[civeng99]

Why would one charge with 2 generators?

[MarvinJr]

The Airstream came with the WF-9855-AD and it looks like all of these posts have cleared up my thinking. My concern was with my initial mistake of connections of the parallel cables.

I called tech support at WCFO and they had me disconnect the batteries and test to make sure the converter/charger was functioning properly. Everything seemed to check out.

Thanks

[MarvinJr]

Thanks. I used the generator to charge through the WF-9855-AD converter/charger.

[uncle_bob]

Originally Posted by MarvinJr

Thanks. I used the generator to charge through the WF-9855-AD converter/charger.

Hi

A lot of converters from those folks have been observed to put out less current than one might think they would ..... There are a *lot* of posts about this over the years.

Bob

[MarvinJr]

Thanks Bob. I’m open to suggestions if there’s something better

[uncle_bob]

Originally Posted by MarvinJr

Thanks Bob. I’m open to suggestions if there’s something better

Hi

The Victron stuff puts out what they claim it does (an 80A charger puts out 80A). It also appears that the Xantrex stuff also does what you would think. Both are a (gulp!!!) step up in price. They come with a lot of cool features, but that's a different topic.

Most of us go to a hybrid inverter / charger when we take that hit to the credit card. The cost of the hybrid isn't quite as crazy when compared to a converter + inverter.

Yes, that's a lot f money and work to fix what seems like a simple problem. Money wise, I suspect it's a "you get what you pay for" sort of thing.

Bob