How Many Amp Hours Do I Need For My Rv. Your furnace will be next most important to keep you warm at night. We keep the batteries charged using one of five different ways.
From here we can determine that two of these 100-watt panels would give us about 6516 amp-hours a day which covers our requirement of 50 amp-hours. When one is boondocking you would be using battery to power not only refrigerator but also other appliances like water pump or lights. Although its not up to an engineers standard my easy rule of thumb is 1 amp hour of electricity from every 15 watts of solar our single 160 watt solar panel can generate up to 11 amp hours.
We keep the batteries charged using one of five different ways.
250 watt-hours 12 volts 208 Amp-hours. But on a perfect sunny day with the trailer in no shade there are maybe 4 total hours when we generate max amps so 10 amps X 4 hours 40 amps. How many panels would I need to charge a 220ah battery. Think of this as the minimum battery bank size based on your typical usage.
