- An alarm, such as an intermittent beep or flashing light, which serves to warn of a low battery. Used, for instance, in a smoke detector or cellular phone. Also called low-battery alert, or low-battery alarm.
- A component, circuit, device, instrument, piece of equipment, readout, meter, or mechanism which serves to inform of a low battery.
- synonym low-battery alarm
- synonym low-battery alert
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