coolmom42
Oct 22, 2014Explorer II
charging battery from generator---how long does it take?
In 2-3 years, I'm planning to convert a van to a minimalist RV, and estimate that I'll need about 100 amp-hours of power every couple of days, absolute max. (LED lighting, fan, water pump, charging electronics, maybe at some point a 12 V fridge.) So that means a 200 amp-hour battery bank at 50% or less discharge level.
I recently purchased a Honda EU1000 generator, with the intent of running home fridge/freezer in a power outage, plus the long-term intent of using it to charge a future camper battery.
My understanding is that this will require a good quality battery charger between the generator & battery bank.
Battery chargers come in different amp ratings, so how do I choose the most useful amp rating for my needs?
Is the amp rating calculated at 12 V DC output?
With the generator running at say 800 watts/12 V = 67 amps x 90% charger efficiency that gives 60 amps possibly going to a battery bank. Correct me if that's wrong, please.
So given the 60 amps possible from the generator, does the charger then become the limiting factor?
With a 20 amp charger.... does that mean it would take 5 hours to restore 100 amp-hours to the battery bank?
Just trying to figure this out. My plan is to gradually acquire smaller components and then pull the trigger on the van in 2-3 years, depending on lots of factors.
Any input appreciated!
I recently purchased a Honda EU1000 generator, with the intent of running home fridge/freezer in a power outage, plus the long-term intent of using it to charge a future camper battery.
My understanding is that this will require a good quality battery charger between the generator & battery bank.
Battery chargers come in different amp ratings, so how do I choose the most useful amp rating for my needs?
Is the amp rating calculated at 12 V DC output?
With the generator running at say 800 watts/12 V = 67 amps x 90% charger efficiency that gives 60 amps possibly going to a battery bank. Correct me if that's wrong, please.
So given the 60 amps possible from the generator, does the charger then become the limiting factor?
With a 20 amp charger.... does that mean it would take 5 hours to restore 100 amp-hours to the battery bank?
Just trying to figure this out. My plan is to gradually acquire smaller components and then pull the trigger on the van in 2-3 years, depending on lots of factors.
Any input appreciated!