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Power only from battery #9

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betatim opened this issue Feb 26, 2017 · 1 comment
Open

Power only from battery #9

betatim opened this issue Feb 26, 2017 · 1 comment

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@betatim
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betatim commented Feb 26, 2017 •
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Is it feasible to run the whole setup only from a battery?

This would simplify the setup considerably for deployment on motorbikes. No need for external power connections, 12V -> USB convert (or is it 6V on your bike?) etc.

The ultimate GPS from Adafruit claims to use about 20-25mA (25mA tracking, 20 mA current draw during navigation). With a 2500mAh LiPo only about 100h of operation.

60 days deployment, 4 measurements per hour -> (100/60/(4*24))*60 ~ 1min per measurement. Not long enough to get a GPS lock?!?? Could save power by only waking up every 30minutes during the night.

Big batteries: 4400mAh 6600mAh
@betatim
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betatim commented Feb 26, 2017

Or even 10000mAh

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