Trailer towing/ charge line

[ckraptor]

I am buying a Square drop trailer that is equipped with 640 ah of Lithium batteries. I know there is a 15 amp Charge line in the 7 pin connector in the Ranger and I know it is mainly a truckle charger but I have heard (thru the internet so it must be true) that there have been issues with the tow vehicle sometimes (alternator failure and weird electrical anomalies) when using the charge line to the trailer when equipped with Lithium batteries. I have not seen anyone say Ranger or Raptor etc...does anybody tow a trailer with lithium batteries?? any issues??...did you disable the charge line??. talk to me
thanks in advance
Cameron

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[DesertDweller]

I tow a camping trailer with a 100 AH Battle Born and have had no issues. Full disclosure: I don’t usually tow very far but there have been no weird hiccups.

 

[Txquailguy]

I tow a camper with a 100ah lithium setup...trailered it about 4 times now with the 2025 Ranger 7 pin....no issues at all.

 

[OxygenMask]

You will need a dc-to-dc converter in the charge line. The trailer may already have one built in.
But 15 amps is plenty, far more than a trickle charge, and there shouldn't be any alternator issues, it's chump change to the alternator.

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