noteven wrote:
time2roll wrote:
noteven wrote:
I have a question:
If I have 2 x 100ah LiFeO4 house batteries with a charge rate spec of "1C" sitting at 20% after a rainy few days in the forest, how long does it take to charge these batteries via the truck engine when I start up and drive away, using the "7-way" connection?
I figure a 40amp DC-DC charger recharges them fully in 4 to 4-1/2 hours.
Only trouble is most 7-pin connectors have OEM #14 wire and a 40 amp fuse. Good chance that 40 amp DC-DC will pull 50/60 amps and open the fuse resulting in no charge. I recommend 20 amp DC-DC if using the OEM 7-pin connection.
I didn't word that right - how long will the standard 7 way pin system take to recharge Li batteries?
There is no definitive answer because of equipment and usage variability.
Few to no trip reports that I have read. Unless your truck alternator continuously produces 14.6 volts the lithium battery may never fully charge.
Would be wonderful to read a report with and without a DC-DC charger.
