Charging batteries with a small generator
I have been given a 1000w generator for free. If I am boondocking on 1 or 2 12v batteries how long should I run the generator? The trailer has n electric only fridge.
Forum Discussion
First, Electric only fridge? 110vac or 12vdc?
There are a lot of 12vdc powered or controlled items in your camper. The converter makes 12vdc from the AC power (shore power or generator) for those items and to charge the battery.
Most people with 12vdc refrigerators find that having two batteries is almost a necessity to insure uninterrupted service when other power is not available in a 24 hour period.
I see there appears to be a big push to have small factory solar power systems installed to keep the batteries topped off with the 12vdc fridges. You might consider adding some solar.
Another issue is that normal lead acid batteries can only be run down 50% to prevent long term damage to the cells. IMO, it’s worth the expense to change to a LiFePO4 battery that can be run down to 0% without damage. And can be had in large power capacity. Just changing out the same capacity LA battery with a Lithium is DOUBLING your usable amps. (Bonus, they weigh 50% less, too.)
There are a lot of 12vdc powered or controlled items in your camper. The converter makes 12vdc from the AC power (shore power or generator) for those items and to charge the battery.
Most people with 12vdc refrigerators find that having two batteries is almost a necessity to insure uninterrupted service when other power is not available in a 24 hour period.
I see there appears to be a big push to have small factory solar power systems installed to keep the batteries topped off with the 12vdc fridges. You might consider adding some solar.
Another issue is that normal lead acid batteries can only be run down 50% to prevent long term damage to the cells. IMO, it’s worth the expense to change to a LiFePO4 battery that can be run down to 0% without damage. And can be had in large power capacity. Just changing out the same capacity LA battery with a Lithium is DOUBLING your usable amps. (Bonus, they weigh 50% less, too.)
