Glossary - All Terms and Definitions ... - Maxim Integrated
For example, a 12-volt, 7Ah rechargeable battery used in an alarm system will supply an amp at the rated voltage range for seven hours, 2 amps for 3.5 hours, etc. If my alarm consumes 250mA, this battery would operate the system for 28 hours. See: Battery Considerations for Today's Low-Power, Long-Life Solid State Devices
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