What size solar charger to maintain batteries
What size solar charger should I get to maintain coach batteries. How many watts do I need.
Forum Discussion
My RV has a propane and CO detector, and along with the refrigerator, the load on the battery is 35 amp hours per day. THis is about what one 120 watt solar panel will put out in one day.
So I would suggest a 100 - 150 watt solar panel as a start. IF you like to watch TV or other large use of power, install a second or third panel. Make sure to check the area that you plan on installing the panels. Some 200 watt panels can not be installed on any RV roof, there is not enough space for the huge panels.
SunElec.com Look for 100 - 150 watt 12 volt nominal panels. Look for a PWM controller that is rated for a few more amps than the panel.
Fred.
So I would suggest a 100 - 150 watt solar panel as a start. IF you like to watch TV or other large use of power, install a second or third panel. Make sure to check the area that you plan on installing the panels. Some 200 watt panels can not be installed on any RV roof, there is not enough space for the huge panels.
SunElec.com Look for 100 - 150 watt 12 volt nominal panels. Look for a PWM controller that is rated for a few more amps than the panel.
Fred.
