Question

[SouthTrout]

Happy Wednesday
I'm thinking of going to Lithium batteries. Will I have to change my converter, or will the converter that came with my rig be able to charge the batteries on shore power and hauling it to the camp grounds?

 

[newmarokie]

Trout, there are several on here that can give some guidance, But each and everyone will at least need to know the year and make of your RV. Even more helpful would be the make and model of your inverter/ charger

 

[John&Andrea]

From what others have said, if a late model RV maybe not. If you can see the converter it may have information. Use the model # and look on line and even reach out to the manufacturer.

 

[SouthTrout]

Hi. I have a 2021 RKS246 I cant get to my camper for a few weeks.
I'm not sure if that helps.

 

[TheLooks]

No it does not. Not sure what you mean by charging while hauling....that does not happen unless its a motorhome. The charge line in the 7 pin plug is way undersized and just keeps the breakaway battery charged....barely. We will need model # of the convertor, layout of the batteries etc.

 

[SouthTrout]

I found some info on the converter. Hope this helps. I always thought that when we went from place to place that the alternator on the truck was charging the batteries on the camper.

 

[TheLooks]

So it is a Standard WFCO 55 amp convertor. It is built into the distribution box. It is a standard 3 level charger. It will not charge lithium fully. This point is battled about back and forth in many forums. It will not hurt your battery, and if you have solar, or a small dedicated lithium charger, you can leave it in place and just add to the system. Your truck does not use a large line in the 7 pin connector and the size of the wire limits charging capacity. With Lithium, it pulls a heavy charge and can burn up an alternator, IF heavy wire is installed and IF you have about 200ah or more of battery(ies) in place. DC-DC chargers are used in high amp hour loads and much heavier wire. Using a 100AH battery is fine. Its still much better as you get to use much more of the capacity of the battery. And you don't need to upgrade much.