Recharging batteries when boondocking

Unless you need A/C or a microwave, strongly consider solar.

One more vote for solar.

If you have 2 6v GC batteries what you suggested will work fine. That model is suppose to be an improved version of the B&D 40 amp charger. You can leave your other converter charger in place while using the portable. You won't charge your batteries completely using the generator just to about 80 percent. Check your charger output first it may be putting out 40 or 50 amps already, which will be fine for 1 12v or 2 6 v batteries. Post your model charger here and you will get more accurate advice.

KD4UPL wrote:
You won't need the external charger. Just plug your RV into the generator and let the built in converter do it. If you have an older converter that doesn't have a good 3 stage regulator I would spend the money to upgrade that, not an external one.

Ditto!
never needed a separate battery charger to recharge our batteries with the generator.

If boondocking is in your future consider a solar solution.

Solar or generator? If I'm camping near you, please pick solar. My solar starts charging before you are awake and it won't wake you. Nor will it wake your kids when napping.

+3 for upgrading the converter.

KD4UPL wrote:
You won't need the external charger. Just plug your RV into the generator and let the built in converter do it. If you have an older converter that doesn't have a good 3 stage regulator I would spend the money to upgrade that, not an external one.

CONCUR ! Especially on upgrading your converter.

I sure hope those are "true" deep cycle batteries, not just marine/RV dual purpose. When you need to replace them, a pair of 6V golf cart batteries in series is a better solution,

You won't need the external charger. Just plug your RV into the generator and let the built in converter do it. If you have an older converter that doesn't have a good 3 stage regulator I would spend the money to upgrade that, not an external one.

I don't have an answer to your question but have you considered solar?.

We do quite a bit of boondocking and always relied on a Honda EU2000i to keep the batteries charged but decided to try solar (a portable 160watt unit) about 4 years ago and have been very satified. Since switching to solar I would guess that we may have used the generator maybe a dozen times due to inclimate weather or to use the A/C, hair dryer or microwave. Just a thought.