Quote:
Originally Posted by red-beard
The iPhone has a 2400 mAh 3.7 V battery ~ 9 Wh per charge. How do we get to 361 kWh?
If we add in the tower usage, charger losses (50%), etc, I still don't see how we get to 361 kWh/year.
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I'd say the infrastructure is the biggest hitter - you don't just "connect to the internet" on 4G. It takes TWENTY hops to get from my cell on T-Mobile to
Google. Every one of those hops represents some sort of device that is sucking power 24/7.
Granted, a single request from my single phone accounts for only a fractional percentage of that total power usage, but it adds up. Your phone isn't transceiving only when you're surfing the web. It's checking for updates, downloading email in the background, etc.