In solar-powered, battery-run systems, each unit’s battery stores electricity generated by the solar panel during the day and provides electricity to a load when required. The systems currently are networked, but no method is in place to determine or report battery health. A client seeks ways to pre-emptively warn the customer when a battery is about to reach the end of its useful life. Possible solution areas include algorithmic technologies based on time-varying voltage, current, and other metrics during charge/discharge cycles.

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This article first appeared in the July, 2014 issue of NASA Tech Briefs Magazine.

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