Quote:
Originally Posted by rockbender
In the rare case that your solar panels are bad or have very low output, you could see the separator connect upon initial voltage increase from the solar. Once connected, the 1A draw of the separator slowly draws the voltage down to the point where the separator opens and the pattern repeats. Do you have a way to monitor your amperage in/out?
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Yup...that's one of the issues with the coil-based Surepower products. When there is little sun, say less than an amp's worth, a good chunk of that solar power goes into heating up the relay instead of flowing to the batteries.
If you end up replacing the separator, consider a Blue Sea ACR....the basic units are around $75 and the fancy 7622 is about $175. They are both bi-directional for solar and don't have relay coils to burn power.
There are a number of threads here discussing the Surepower units cycling; do a search for Surepower.
It sounds like your house battery may be the problem.....an easy and cheap test would be to temporarily replace the house battery with another good battery (doesn't have to be a deep cycle for testing, steal the battery from the wife's car)....and see if the cycling stops.
Does it cycle in full sun?