CA Traveler wrote:
OP The alternator is designed for flooded batteries and will take extended time to charge the lithium batteries. Is that OK? The usual method is to use a gen or a DC to DC charger or solar designed for lithium batteries. And of course the converter when you have shore power . . .
sch911 wrote:
You truck probably already does charge the camper's battery. The charge line is in the 7 way connection.
IMO, it's more about voltage than battery chemistry. Our truck's alternator consistently produces 14.3v to 14.4v. That'll charge a lifepo4 very quickly and to 100% SOC. Those with alternators that produce <14.0v, agree, charging a lifepo4 will be slower, but it'll still manage near 100% SOC.
If the OP has plans to run a dedicated, larger gauge wire/cable from the alternator to the batteries to charge them, he/she should see some significant charge current. If the OP has plans to charge using the 7-pin connector, charging will be very slow (typically only 5-10a of charge current).
