My iPhone battery drops rapidly?

My iPhone 4 battery drops so fast, even when I'm not on the phone it will drop, I haven't got blue tooth on what should I do?

If your battery is old that might be it! I would take it to an apple store just to check it though!

Check to make sure no apps are running in the background, turn down brightness, turn off Wi-Fi when not using it, as it still searches for Wi-Fi. And, just turn it off whenever possible.

Sometimes having apps open it can drain the battery and so do notifications. Maybe double click the home button, tap on an app until t wobbles and delete all of the ones open (this won't actually delete the app, don't worry) and also disable push notifications or stop the notifications that you don't need.
Hope this helps x

IPhones use a lot of battery life because of the phones battery size. You should be able to upgrade your battery in app store, places that have phone accessory's

Is your Wi-Fi always on? Is your screen on auto brightness? Are your apps open when you double tap the home button? Are you always serving the net? If any of things are happening this is why your battery is dying quickly.

So does mine it's really weird! I charge it up all night then when I take it of for 5mins it's on 90%.It's also hard to get the battery out which is hard. Go and get another charger, go to your local phone shop try all that hope I helped xx