Forum Discussion
Golden_HVAC
Jul 06, 2015Explorer
Do they draw from the battery or inverter?  
Yes.
Well they do. If you have a inverter/charger, it will draw from that if it has power going into the inverter/charger and it putting power into the battery. If not it will draw from the battery.
So your charger (and most RV's come with only a converter/charger) will put out say 40 amps while the generator is running. The battery will be accepting 35 amps, and the converter/charger will be supplying the loads at that time.
The RV will be consuming 35 amp hours a day to run the propane and CO detectors, and refrigerator.
The lights, water pump, and other small loads are not significant ones. The Furnace can be a significant load - it can draw 7.5 amps per hour.
Your battery is about 100 amp hours capacity. So you might get 4 days on a pair of batteries without recharging - if you barely use any lights (or use LEDs) and no furnace.
Recharging sure helps. I prefer to use the sun. I have a 415 rated watt solar system. It cost about $3,000 back in the 90's but can be replaced for about $800 today.
SunElec.com They sell a 140 watt panel for $229 last time I checked.
I would recommend a pair of 140 watt panels and a PWM controller rated at 20 amps.
Have fun camping!
Fred.
Yes.
Well they do. If you have a inverter/charger, it will draw from that if it has power going into the inverter/charger and it putting power into the battery. If not it will draw from the battery.
So your charger (and most RV's come with only a converter/charger) will put out say 40 amps while the generator is running. The battery will be accepting 35 amps, and the converter/charger will be supplying the loads at that time.
The RV will be consuming 35 amp hours a day to run the propane and CO detectors, and refrigerator.
The lights, water pump, and other small loads are not significant ones. The Furnace can be a significant load - it can draw 7.5 amps per hour.
Your battery is about 100 amp hours capacity. So you might get 4 days on a pair of batteries without recharging - if you barely use any lights (or use LEDs) and no furnace.
Recharging sure helps. I prefer to use the sun. I have a 415 rated watt solar system. It cost about $3,000 back in the 90's but can be replaced for about $800 today.
SunElec.com They sell a 140 watt panel for $229 last time I checked.
I would recommend a pair of 140 watt panels and a PWM controller rated at 20 amps.
Have fun camping!
Fred.
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