Solar battery charger
Looking for one to keep the battery charged between trips.
Forum Discussion
I just ran by the camper and checked mine. It has worked very well for me over the last 10 years on single batteries at a time.
Voltage on the Marine group 24 Interstate that came new on the camper:13.71v in sunshine mid day.
Watts-peak:5
Voc: 24
Isc: .350
Vspec(presumably mpp): 15.0v
Nighttime blocking diode: internal
No watt meter or controller on it, but it helped a number of batteries in midlife life get to 10 years of service for me, with very minimal water usage.
For grins I will run it against a few different health batteries in a few different conditions with the amp hour meter attached.
I have found with the stronger sun in Texas I do not need to tilt it as I did in Michigan, and even with a shadow across it full time it will get a charged battery to or above float voltage at mid day. In Michigan it was strong enough at winter solstice (tilted) to get a battery to or over 13v on a sunny day, with better performance the rest of the year.
Battery tended to be anything from a single group 24 to a single group 31.
Jim
Voltage on the Marine group 24 Interstate that came new on the camper:13.71v in sunshine mid day.
Watts-peak:5
Voc: 24
Isc: .350
Vspec(presumably mpp): 15.0v
Nighttime blocking diode: internal
No watt meter or controller on it, but it helped a number of batteries in midlife life get to 10 years of service for me, with very minimal water usage.
For grins I will run it against a few different health batteries in a few different conditions with the amp hour meter attached.
I have found with the stronger sun in Texas I do not need to tilt it as I did in Michigan, and even with a shadow across it full time it will get a charged battery to or above float voltage at mid day. In Michigan it was strong enough at winter solstice (tilted) to get a battery to or over 13v on a sunny day, with better performance the rest of the year.
Battery tended to be anything from a single group 24 to a single group 31.
Jim
