double battery charging

There should not be any problems, as when the batteries are at full charge the 240 volt charge, if an auto one, will shut down, but does the 12 volt on the genny have a auto shut off at a certain voltage. Will get my 2.0 KVA Chinese built genny out and check that out. I had better put my report in on how thats going to, great actually.

Cheers Bruce

it depends on the battery and the charger
my AGMs take somewhere between 60-80amp max in bulk charge
and my charger does 50amp. A second charger would make little sense since the 50 amp flow only for a short time anyway.
When you have a non AGM the bulk charge is much lower
but if you have only a 10 amp charger or less it would increase
charge capacity. In case of a 20 amp charger and a standard wet cell battery it does not make much sense since such batteries take charge much slower than AGMs. You did neither specify the battery type nor the capacity of the charger so the short answer would be:
can't say!

good luck
gmd

Hi Shane

You mention a 3 stage charger and then mention hooking up another charger.

This sounds strange, does he have 2 chargers and if so what are the specifications and where are they mounted. It would be best to just use the bigger charger if possible and not the built in 12V charger that most Honda units have.

Regards Derek from ABR

Gday shane i recently went away for nine days bush camping on the 4th day dual battery nearly flat i charged it up using my $99 gmc 12 v leads straight out of the genny and my mate put the solar panel on as wel was charged up in about 6 hours then we swaped it to another vehicle did the same and all was good till we left we were regulary checking the batterys using a hydrometer

The time it takes to charge a deep cycle battery is limited by the battery itself - you won't necessarily get a faster charge by using a charger with more current capability.

You need to tell us what the current rating of the first charger was and what type of deepcycle it was - AGMs and Gels can accept charge much faster then wetcell deepcycle.

Even if an AGM can accept a high current, you will shorten its life by charging faster than 25% of its amphour rating e.g. more than 25 amps for a 100 amphour battery.

Hi all, i must not have made myself clear. he plugged in two battery chargers to the gen. one was the three stage 6 amp charger and i don't know what the other one was.
cheers.