08M2 sleep power drain

binary1248

Senior Member
I am using an 08M2 to delay fan shutdown on a motorcycle (and two channels of thermistor data logging) and after a delay of when the ignition turns off I will shut the fans off. After the fans shut off I will use "sleep" to reduce the power drain.
My question is, what is the power drain of an 08M2 in none sleep and sleep mode (disregarding any external output loads during non sleep modes.). I have searched the forums but didn't find the info.
The code is written and I guess I can set up the bread board and measure, but maybe some one already knows the answer.
After I get the sleep mode working may also use "disablebod" to further reduce power, but that's for a later code test...
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The fans will be controlled by a power FET.
Paul
 
Last edited:

binary1248

Senior Member
What is the Ampere hour rating for your battery?
It is a motorcycle battery, about 20 Ahrs. A few ma drain will not be a problem even in non-sleep mode. Just want to minimize drain if possible. At 20 ma drain that would be approx. 800 days to drain a fresh and fully charged battery. So, it's more about learning about the 08M2 for future applications.
Also thanks to hippy.
 
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