However, these batteries have a comparatively narrow temperature range of -20 to 60° C, and their crimped battery seals can leak and corrode over time. In addition, the annual self-discharge of those batteries is too high for long-life purposes. Such chargers are completely put in and outfitted with temperature compensation, supervisory alarms for varied system defects, and often redundant impartial energy provides and redundant rectifier systems.
Multimedia & Photograph