Apple iPhone 3GS Smartphone Batteries & Battery Extenders
The Apple iPhone's battery is fully internal and is not intended for replacement by end users. The products listed here are intended to extend the life of your iPhone 3GS or to charge it's battery without dedicated power sources (electrical outlets, car power ports, etc.).
inspiretech iPhone 3G / 3GS External Battery Pack
The inspiretech iPhone 3G / 3GS Battery Pack is one of the most affordable on the market today. Its internal 1500mAh Li-Ion battery charges your iPhone or keeps it going longer when its own battery is low.
Charge the inspiretech Battery Pack with a standard Dock Connector USB cable or wall charger. Once it's charged, it can recharge your iPhone's battery up to 80% in less than one hour, or simply extend your iPhone's battery life.
Includes LED indicator lights.
FASTMAC CiV-0100 iV Battery Charger
The FASTMAC CiV-0100 iV is an on-the-go mobile battery charger that allows you to continue using your iPhone, iPhone 3G or iPhone 3GS even as you charge it. In addition to the 30-pin Dock Connector port used for charging and syncing your iPhone, the iV also has a full-size USB port that can simultaneously charge another device such as a Bluetooth headset, digital camera, iPod or even another phone.
The iV also includes a built-in flash LED that can be used for emergencies or low light conditions when taking photos.
The iV's 3100mAh battery adds up to 24 hours of talk time, up to 72 hours of audio playback and up to 21 hours of video playback.
Tekkon myPower iPhone Battery Sleeve
myPower for iPhone doubles your iPhone battery life while protecting your iPhone, iPhone 3G or iPhone 3GS in a sleek sleeve. A rechargeable lithium polymer battery powers your iPhone on the go, and acts as a dock, enabling you to sync and charge iPhone. And myPower for iPhone minimizes your charge time, enabling you to charge both batteries at the same time. This lightweight battery includes a USB cable for connection to your computer or USB power adapter, and myGuard screen protector for your iPhone 3G. An easy to read capacity indicator provides the power level in the battery.
Richard Solo1800 for iPhone
Keeping your iPhone charged and ready is important, particularly because the iPhone's internal battery can't be swapped with a fully-charged battery. The RichardSolo 1800 is a backup battery which connects to the iPhone's Dock Connector and gives the iPhone a complete charge with power to spare. The RichardSolo 1800 also has a built in laser pointer and LED flashlight.
Kit includes a retractable USB cable and AC adapter to charge the RichardSolo 1800 with a computer or wall outlet, and a DC adapter to charge the unit in the car. The battery backup can also charge along with the iPhone.
The inspiretech iPhone 3G / 3GS Battery Pack is one of the most affordable on the market today. Its internal 1500mAh Li-Ion battery charges your iPhone or keeps it going longer when its own battery is low. 
