My iPhone 4 battery life is short. Any tips?

My iPhone 4 battery is pretty short. I already know about lowering the brightness, turning off Bluetooth, and closing apps that I don't use but is there anything else I can do? Oh yea and it loses a lot of battery when it's off. For an example, my phone was about 70% around 9:00 P.M. Then this morning it was 22%. Why does it lose a lot so fast?

You may have too many apps up there

It loses battery because of the outdated technology. They change the technology every year to try and use as little battery as possible. I would leave it charging overnight if you can. I have a mophie case and it doubles the battery life. I recommend getting one of those.

Try this. Let it charge to 100% and take it off the charge soon after that! And then go about your day as normal until it runs out of charge, then do the same again and your batteries life span should increase! This is because your battery has a memory which it develops

This happens to me sometimes and i think it mght be because you could be overcharging it. I have a lot of apps and games on mine so i play it while its charging then when i do that my battery life seems shorter. So try charging it only when you really need to.

Try these iOS tips. Best luck.
http://www.zdnet.com/how-to-improve-your-iphones-battery-life-updated-for-ios7-7000014902/#photo

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