Lance TC - lithium - DC-DC charger question
I’ve just purchased a 2020 Lance 975 that will sit in my 2022 F350. I have to install the Lance 6-pin at the front of my bed. I will also replace the two 12V lead acid house batteries with one 200 a...
Forum Discussion
BFL13 wrote:Can't imagine using our 40a dc2dc charger without a battery isolator or equivalent to automatically take it off-line when the alternator is off-line. For us, just too easy to forget.
. . . With the truck engine off, if I forget to turn off the DC-DC it still does about 14 amps from the truck battery. Goes back to 20 when the truck is turned on. Oops, it is a Chev, no isolator, I must remember to go back into the camper and turn the DC-DC off. Easy to forget if you stop to go into a store, or worse go off for a longer time.
The DC-DC isolates the truck batt from the camper batt, but it does not isolate the camper from the truck unless you have a Ford. I could put an isolator in the camper somehow as others have--might save me someday.
As for isolating the 7-pin pos (+), we simply disconnected it inside the 7-pin truck to TC pigtail connector. For us, it serves no useful purpose and is just a liability with the dc2dc charger online. If we did need the pos (+) for some reason, all we have to do is reconnect the pos (+) wire inside the 7-pin pigtail connector.
