Power consumption 52832

[Jason Anderssen]

Hi,

I am relatively new to programming hardware at this level, and have developed our product on the 52832, so finally I have purchased the Power Profiler Kit, and downloaded the NRFConnect and power profiler software.

Please see the attached screen shot, and can I ask if this is a good result in power consumption, or should I be trying to improve it further?

Sorry for such a newbie question, and any extra information or links to information to learn about power consumption more, would be fantastic, and much appreciated.

Cheers and thanks in advance for your help

Jason

[Jason Anderssen]

Hi Einar,

Please have a look in the new screen shot, and let me know if you think this would be acceptable for an iBeacon type of device ?

Cheers and thank in advance for you help

Jason

[Einar Thorsrud]

Hi Jason,

Yes, this looks acceptable. It depends on a few factors, but it seems like you should be able to get a battery life of more than 1,5 years on a typical coin cell battery (3 V, 200 mAh).

[Jason Anderssen]

Hi Elinar,

What kind of life expectancy could you expect for a CR2016 Battery?

Cheers

Jason

[Einar Thorsrud]

Hi Jason,

You can calculate battery life in a simplified way like this:

Battery life [h] = (battery capacity [mAh]) / (average current consumption [mA])

A CR2016 might give you about 80 mAh, so you get up to 0.75 years if you have an average current consumption of 11.6 μA. You should expect a significant variation though. And batteries are not as straightforward as this simple calculation suggests. This article is interesting if you want to understand more about coin cell batteries.

[Jason Anderssen]

Hi Einar,

One more question, if you dont mind answering, your help has be invaluable!!!  In the example's I have seen for SAADC, how iimportant is the calibration, should I be implementing this in our product? How accurate is the battery reading if I dont calibrate vs do ?

Cheers and thanks again

Jason