When you see your battery life dwindling away, wouldn’t you like to know exactly how much battery life you have left, besides that dreaded “20% Battery Life” warning? Well if you have an iPhone 3GS this quick tip is for you…

For the iPhone 3GS, you can now display a percentage meter right next to the traditional battery life indicator. To enable the battery life percentage meter:

1. From your iPhone home screen, tap on “Settings“.
2. Next tap on “General“.
3. Now tap on “Usage” and flip the “Battery Percentage” switch on.

Now you’ll see the percentage of available battery right next to the battery icon! If you ever want to turn it off or find that this trick is not for your, simply flip it off. Now that was a little too simple.

Some other iPhone posts you may enjoy:

• July 5, 2010 -- How-To: Change Your iPhone 3G or 3GS Voicemail Password
• May 18, 2010 -- Quick-Tip: Quicker Caplocking on the iPhone and iPod
• October 9, 2009 -- Tip: 5 Reasons to Love your iPhone Home Button
• October 6, 2009 -- How To: 5 Ways to Save Battery Life on your iPhone
• April 7, 2010 -- Quick-Tip: How to Change your iPhone Email Signature

Isn’t it always the case that when you have to make that important phone call , send that amazing photo, or have an emergency Cram session that your battery life is low. Well in this iPhone How-To, we are going to show you a few ways to save that oh so crucial battery life.

Follow along, you will love us for it.

1. Minimize your use of third-party apps.

That’s right. Those awesome iPhone apps that you download do drain your battery. The good news is as long as you minimize your use of third-party apps you should be fine. Also remember, all iPhone apps aren’t equal. There are just some apps , particularly games or apps that utilize vibration or GPS within the app, that can run your battery down.

2. Only pull one email account.

Instead of retrieving your email from multiple accounts, try pulling only one or two email accounts. It just takes more battery power to do it. Try setting up your multiple email accounts and feeding it into one account, this way you are only pulling one account on your phone.

3. Turn down your screen.

It’s that simple, turn it down. Simply go to your iPhone Settings –> Brightness , and lower the brightness of your screen. It’s that easy.

4. Turn off GPS.

On your iPhone, go to Settings–> General –> and use the slider to turn off “Location Services” aka GPS.

5.  Turn off your iPhone WiFi.

Again, on your iPhone, go to Settings–> Wi-Fi–> and use the slider to turn off “Wi-Fi”.

That’s it, start saving your battery power.

Some other iPhone posts you may enjoy:

• October 30, 2009 -- Quick-Tip: Show Detailed Battery Life on iPhone 3GS
• October 9, 2009 -- Tip: 5 Reasons to Love your iPhone Home Button
• July 26, 2010 -- App Mention: Task Manager for iPhone – Dejumble
• July 15, 2010 -- Reviving Dismal iPhone App Sales
• May 18, 2010 -- Quick-Tip: Quicker Caplocking on the iPhone and iPod