Product Description The Targus Backup Battery for iPad is a 5.0 V, 2.1 A output battery that allows you to charge your iPad or Smartphone whenever extra power is needed. A charging dongle for the BlackBerry is also included. Just connect the backup battery to an iPad or any Smartphone to continue calling, game playing, web surfing or movie watching. Featuring 4800 mAh of battery capacity, the battery provides users with an additional 5 to 10 hours of use on iPad and can fully charge a Smartphone 3 to 5 times on a single charge. For rapid charging, the battery is compatible with Targus USB Fast Charger. The battery features a 4 level LED battery level indicator so users are never left without power. The thin and compact size is portable and can be easily packed away into luggage for easy travel Amazon.com Targus Backup Battery for iPad® + BlackBerry Devices Targus Backup Battery for iPad® + BlackBerry Devices Power Whenever, Wherever Charging your favorite tablet at home or while on the go has never been easier thanks to the Targus Backup Battery for iPad & Backberry Devices. This unique device sends power to your iPad or BlackBerry device when you need to extend battery life for game playing, web surfing or movie watching. The frustration and hassle of a dead battery will be a thing of the past with this easy, compact mobile charging solution. A charging dongle for the BlackBerry is also included, ensuring users are never left without power. Rapid Charging The Targus Backup Battery for iPad/tablets is the perfect companion for your device because of its high-speed charging capabilities. It features 4800 mAh of battery capacity and outputs 5.0 V, 2.1 A. All that power provides users with an additional 5 to 10 hours of use on the iPad or BlackBerry tablet. It can also fully charge a Smartphone 3 to 5 times on a single charge. A convenient 4 level LED battery level indicator also ensures you know just how much backup power is available. The Backup Battery can be recharged from any standard USB port and it’s also compatible with the Targus USB Fast Charger for rapid charging. battery level indicator Perfect Travel Companion Your tablet is often with you wherever you go, especially because its design and form factor makes it easy to travel with. That’s why the Targus Backup Battery for iPad/BlackBerry tablet is equally sleek, lightweight, and compact. Whether you’re traveling on vacation, away on business, or simply running across town for a meeting, don’t be left without extra power. The size of the Targus Backup Battery makes it easy to store inside luggage, a laptop case, or even a purse. compact size