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Batteries are used to ensure that critical electrical equipment is always on. There are so many places where batteries are used – it is nearly impossible to list them all.
Some of the applications for batteries include:
- Electric generating stations and substations for protection and control of switches and relays
- Telephone systems to support phone service, especially emergency services
- Industrial applications for protection and control
- Back up of computers, especially financial data
and information
- “Less critical” business information systems
Without battery back-up hospitals would have to close their doors until power is restored. But even so, there are patients on life support systems that require absolute 100% electric power. For those patients, as it was once said, “failure is not an option.”
Just look around to see how much electricity we use and then to see how important batteries have become in our everyday lives. The many blackouts of 2003 around the world show how critical electrical systems have become to sustain our basic needs. Batteries are used extensively and without them many of the services that we take for granted would fail and cause innumerable problems.
 Battery Testing Guide (2.8MB PDF)
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Technical Papers 