How do the solar panels in my Airstream work?

by Airstream, Inc.

Airstream utilizes Zamp solar panels and a SunExplorer charge control and display. Cut the cord to expensive daily shore power hook-ups with the 12-volt solar charging system. Ensuring the panels are clean, not partially shaded by trees or other interference will promote solar charging. The Sunexplorer charge control performs these basic functions:

1. It senses when the battery is fully charged and disconnects the charge current to avoid overcharging the battery.

2. It resumes charging the battery when the battery voltage has dropped sufficiently to accept additional charge current.

3. It checks the availability of charge current, by cycling the relay every 4 minutes. If there is insufficient charge current available, it’s internal relay will disconnect the battery to prevent discharge through the solar panels at night. 


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