System and apparatus for reliably powering a sign using solar power

摘要

A reliable solar powered sign system is disclosed and claimed. The solar powered sign system includes an electric sign, a solar array, and a pair of battery banks. The battery banks are generally coupled a control unit. The control includes a first charge controller, a second charge controller, and a logic board. The first battery bank is coupled to the first charge controller, and the second battery bank is coupled to the second charge controller. The logic board monitors an operational state of the first charge controller and the second charge controller, and, based on the operational state of the first charge controller and the operational state of the second charge controller, couples one of the charge controllers to the electric sign.