running a dual battery setup in our RV and would like some extra options for when we are camping without access to power and the vehicle is not running.
We have 2 5ah 25.6v batteries currently setup in parallel, so would we require two chargers or just the one?
I was thinking about running a 2.2kva Honda inverter generator paired with a IP65 24/13 charger. Would this provide ample power to keep the batteries topped up when needed?
Hello and welcome to the forum 
You mean 50Ah batteries, right? … and two of them in parallel …
The 2.2 kW generator from Honda is definitely well suited… but then also a bit underutilized… 24V x 13A = around 350W
the small 1 kW would also be sufficient… but maybe you use the power for something else…
What does your wiring diagram in the vehicle look like? … And of course you can use the 24/13 … as long as the voltage values of the chargers are identical, you could connect several in parallel.
Thanks Steffen,
I meant to say 5kwh! And yes 2 of them in parallel.
Good point on the underutilization of the larger generator, perhaps it would be better to go with the IP43 24/25 and the smaller Honda as we wouldn’t really be using it for anything other than topping up the batteries on the odd occasion.
The “old” Honda is still available with “propane gas”… which is much more practical in a motorhome because you already have a bottle with you anyway 
Otherwise, there are alternatives from Champion… but also from other manufacturers…
Possibly better to look at a multiplus2 with a higher charging capability, this may be cheaper than running a separate charger.