Standby batteries are needed to protect critical systems in the event of mains power failure. Typical applications are in electrical substations, telephone systems, hospitals, banking, data centres, industrial applications and processes. Stationary battery systems utilize lead acid, nickel cadmium or lithium cells and remain charged but are not used unless needed. These batteries will stay in a float mode for prolonged periods. Different types of batteries in use have slightly different properties that make them better suited to specific applications, and suffer from different types of failure.

By performing regular battery maintenance, it is possible to identify and avoid many of the various failure modes before they can escalate into a costly failure.

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