Are you suffering from poor battery life on your iPhone? Will your trusty smartphone no longer get you through the day on a single charge? How about even half a day?

Your iPhone’s battery could failing, but there are still ways to help maximize your battery life while you still can. We’ve collected four tips to help you squeeze the most juice out of your iPhone’s battery…

1. Turn Screen Brightness Down

This tip seems to be the number one cure for short battery life on the iPhone. As The Next Web points out, turning the screen brightness down to about 49% seems to help drastically improve battery life on any iDevice.

If the brightness is below 50%, a marginal increase in battery life should be noticed.

2. Location Services Off

This one may not be a very wise choice if you use a lot of location-reliant apps (Maps, etc.), but the iPhone’s Location Services feature does put a considerable drain on the device’s battery.

When Location Services are turned on, the iPhone’s GPS can be accessed to locate and track your location for a specified app. (There was a huge GPS tracking scandal with the iPhone not too long ago, and that may give you other reasons to turn off Location Services.)

3. Kill Background Apps

When apps multitask in iOS, they continue to use system resources and effectively drain your battery. Apps such as Skype or any other VoIP app can especially drain your battery when left running in the background.

If you’ve got a case of the battery blues, try cleaning out your app switcher. You most likely have several apps still running that you don’t need. If you want to totally nuke all background processes at once on a jailbroken iPhone, try this SBSettings tweak.

4. Keep It Cool

When your iPhone gets hotter, the battery drains quicker. Keeping your iPhone out of your pocket or other tight spaces will help keep it cool, and keep your battery running at normal capacity.

While these are by no means the only methods for conserving battery life on the iPhone, they are definitely some great tips that make a huge difference in battery performance. It’s also been said that doing things like turning off push e-mail from the Mail app and turning off push notifications also help.

Let us know if these tips have helped you save battery life on your iPhone. What methods do you use to conserve your battery?