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Electronic Components/Alarms for Battery Power consumed in Electronic Gadgets.

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Question
Dear ZZ

Is it possible to build electrical circuit with alarms for indicating Battery Power consumed in electronic gadgets viz cameras, toys, watches, calculators etc ?.

For example :

Similar to alarm which we manually set in clocks, the electrical circuit designed will calculate the battery power consumed and when it is say 10% battery power remaining (low on battery, drained), alarms will buzz to the consumer as warning signals before 2-3 days in advance for the respective electronic gadgets. This process will be automated.

Awaiting your reply,

Thanks & Regards,
Prashant S Akerkar

Answer
This is a common feature in many devices including cameras, cell phones, smoke alarms or any other device in which battery power might be critical. Smoke alarms will sound a periodic "chirp" when battery capacity is diminished. Most cameras, cell phones or other devices have a battery level indicator of some sort on the display. laptop computers and tablets have a battery indicator. Many cell phones have an audible alert that will warn the user if battery capacity is nearing depletion while the users is on a call.

Toys don't typically need this warning - they will be operated until the battery is depleted, and the battery can be replaced whenever it is convenient. Adding more circuitry to a circuit increases cost, and when the object is to sell a product at the highest profit margin and cheapest cost, adding unnecessary circuitry is not cost effective. So these circuits are only added to devices in which their inclusion provides a positive benefit to the user.

Just as we want to know how much film is left in a camera, we need to know how long the batteries will last. We need to know if there is enough battery left to make a phone call. Smoke and fire detectors need to alert the home owner that they are about to lose protection. But we don't need this sort of information in a typical toy.

Electronic Components

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