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[Q] Why do voice calls use so much battery?

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jackpf
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Default [Q] Why do voice calls use so much battery?

First off, im not complaining about the n5's battery, i think its great, i can get over a day on it with 4.5h screen time.

But ive just come off the phone and my battery is on 74% with 1h 11mins SoT with 34% usage, and voice calls for 30 mins with 26% usage. So if you compare them, voice call is actually using more power than my screen? (eg. if I had 1h 11 mins of voice calls, that would be using about 70% of the battery compared to the screen using 34% for the same time)

How does that work?
Normal (dumb) phones could make phone calls with barely a dent on battery life, how come the n5 struggles so much?
 
rootSU
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Could just be a bad calculation perhaps? Samsung put the incorrect value for cell standby so it looked on the s3 it was using 70% instead of like 4% in reality...

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jackpf
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Maybe, althought I think my actual battery went down by about 5% during the call, so 5% out of the total 26% battery usage is about 20%? So not too far off from the reported 26% (sorry if my maths is totally wrong).

Seems pretty high for something so simple, i cant believe it uses more battery than it does to power an HD lcd screen for over an hour!
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simms22
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(Last edited by simms22; 10th December 2013 at 11:06 PM.)
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takes a lot of battery to connect a call and keep the signal, while the call data flows. telephone calls are are the #1 battery drainer, always have been. on every android phone i have owned since g1 prerelease. and if your phone connection isnt near petfect, it takes a bit more battery. i can see by your phone signal that uour connection is far grom perfect, nearly opposite actually.
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jackpf
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Seems a bit like a step backwards, my backup Nokia brick can make calls for hours before it even loses a bar.

Ah well, thanks for the replies, at least I know it's not just me!
 
meangreenie
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it's probably because of all the spying
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