The Best iPhone 4 Battery Cases Guide

The iPhone 4's internal battery does not last very long if you're a power user. Taking video and pictures quickly drains battery life and with all those other features like constant push notifications and using the web, did I forget something? Oh, right, and making calls only makes things worse. If you're finding yourself looking at the red battery indicator all the time, you might want to get yourself a good battery case. We've got you covered with the best battery cases for the iPhone 4. These battery cases were picked based upon their performance and good looks. Surprisingly enough, there are not that many battery cases for the iPhone 4 out there. While there are a few battery cases waiting to be released, here are the top three best battery cases worthy of your iPhone 4.

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The Mophie Juice Pack Air

One of the most talked about battery cases that came out for the iPhone 4 was the Juice Pack Air by Mophie and for a good reason. Sleek looks are the Juice Pack Air's most impressive feature. The Juice Pack Air packs a 1500mAh battery capacity and in real-world usage, will recharge your iPhone 4 up to 80% from an empty state. Available in black, red and white. Price $79.95.

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The Mophie Juice Pack Plus

The Juice Pack Plus offers 2000mAh of raw battery power. It can double your iPhone 4's battery life and get you thru a full day of multitasking without having to worry about turning down your screen's brightness and you're still going to have a little juice left for the next day. The Juice Pack Plus is a power monster and the ideal battery case for a power use. Not only will it double your battery life, it will protect your iPhone 4 against drops with its rubberized shock-absorbing band. Available in black, cyan, magenta and yellow. Price $99.95.

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The Tekkeon myPower

The Tekkeon myPower is the first battery case for the iPhone 4 to offer swappable battery modules. The myPower is even slimmer than the Mophie Juice Pack Air and has a replaceable 1200mAh battery and doesn't charge your iPhone 4 but instead powers it directly without using or charging your iPhone 4's internal battery. With the myPower battery case you will get about 4-5 hours of battery using your iPhone 4 with the screen brightness turned all the way up, WiFi and Bluetooth turned on and constant push notifications. The myPower's slim form factor is great for those who hate added bulk. Available in black, red and white. Price $79.95.