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News: Glomation introduces new GECM-9G25 SODIMM system on module

[mmenti]

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• Super Hero
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The RTC will not draw any current from the battery when the board is powered up.  The RTC draws 2uA current and the voltage regulator draws about 10uA.  The battery should last for at least 7 months without power up.

Well let's calculate: 0.035 Ah / 0.000012 A = ~2917h -> 122 days -> ~4months. Or what am I missing?

UPDATE: I've picked one of my GESBC-9260 and measured the current: it is about 6.1uA (@2.5V). So, a 35mAh battery should last about:

0.035 Ah / 6.1 uA = ~7.9 months

[mimmus]

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... it's easy to find CR1225 of ~50 mAh ...

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... it's easy to find CR1225 of ~50 mAh ...

The original question was, how long a 35mAh battery will last. I expect a "typical" power consumption about 6~8uA. "Guaranteed" (maximum) consumption might be much higher, of course.

[Jack]

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Thanks everyone, I did try most of the things you suggested, but none worked. I tried it again today with date and hwclock and today it worked so I don't know what was wrong but I'm glad it works.