Forum Discussion
BFL13
Apr 22, 2018Explorer II
Rail Dawg wrote:BFL13 wrote:
I posted a reply that answered all that this morning showing third reply at 1017am on my feed. Apparently nobody saw it? Did anybody? (I have been having problems with missing posts in threads for months, but this is the first where one of mine seems to be missing.)
Thanks--Unless of course, nobody sees this one either!
Yes I saw your reply this morning and that was helpful.
You think the 55 amp is enough?
Ok, that's good it showed up! Yes 55 amps is near 25% of 217AH capacity of the two AGM 105s, so it is about right for generator recharging. BUT that is only true if you actually get the 55 amps to the battery.
That depends on using the PD Charge Wizard to force 14.8v and also by having fat enough or short enough wires between converter and battery.
BTW note that PD 80 amper is supposed to have a 20 amp plug so you need a receptacle in the RV that it can plug into with the sideways slot. That needs to be on #12 wire, not #14, to a 20 amp breaker.
With only the two batteries , there is no point whatsoever in getting a higher amp charger than about 60 amps. A 75 will only save you a few (under 10) minutes of generator time doing a 50-90 compared with a 60.
There are several brands of converters and chargers each with its own set of pros and cons. You get to pick which most closely meets your needs.
EDIT--no overkill but don't know how much you will use. You can't get to full off grid using a generator and charger. Takes forever to get from 90 to 100. Stop the gen at 90. You can get higher from there on solar. Depends on the time of sunshine in the day if you ever get to 100.
Once home you must do an equalization to 16 volts to clean up from not getting to full after each recharge while camping.
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