Sunday, March 23, 2008

For My EE Buddies: A Puzzle

Well... more of a math problem, but I'm lazy and/or stoopit. :)

Let's say your mobile phone is supplied with:

• a 880 mAh Lithium Ion Battery
• specifies up to 245 minutes talk time
• specifies up to 80 hours standby time

... would it be likely to drain a motorcycle battery (~7Ah) within a few days? How about with 30-45 minutes of riding per day?

I can say that for the GPS application I'm using, and nothing else, the 880mAh battery lasts ~8-9 hours, so I'm guessing the current requirement for the device in GPS tracking mode is ~100mA.

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