How fast does the battery deteriorate after 300 charges?

I know apple says that after 300 charges, the batter should still be around 80% health. Mines around 325 charges and is at 94% health, so that means its really good for a 23 month old battery. I'm just wondering how much longer can this hold out for and what's the maximum lifespan for the battery? I pretty much use it every day because of school and usually run it down to about 30%-50% charge before i plug it back in and i have to use it until its completely dead about once every week or so.

Welcome to the discussions,
See this article about battery life in general and how to improve it: http://www.apple.com/batteries/iphone.html
1. If your wifi is activated it will always consume energy even if your not connected to your home wifi net, because the phone is always looking for new available networks in order to connect.
2. Yes

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