Romoss 10000mAh Power Bank (Dual Output 5V 1A + 5V 2.1A)

No wall socket? No Problem! Take the power with you. We don't always have easy access to power, but we constantly need to ensure our tablets and phones are charged for work, emergencies or just keeping in touch. For all those times you need to leave the house for business, travel, holidays or trips where power is not available to you, a 10,000mAh large capacity Power Bank can be a real life-saver! When on the go, you can make a power withdrawal by attaching your mobile device using its own charging cable, for ultimate compatibility. You have the choice between a 1A output for regular devices, and a 2.1A output for high-power devices like the iPad, iPhone 5 and other high-draw devices like tablets. You can even charge two devices at once! Charging the battery bank itself is simple, too - just use the included USB cable to connect to any powered USB socket (like on your computer, or an optional USB wall socket charger). LED indicators on the back of the device shows charging state and power reserve. What is an mAh and how many do I need? Our battery banks and the batteries in your mobile devices are rated on the power delivered over a discharge interval. Confused? Not to worry! The bottom lines is that power is fairly inefficient when being exchanged this way, so a general rule is that you'll need three to four times the mAh power transfer rating, when compared to the size of the battery you want to charge up. Below is a general guide for the battery sizes of some popular phones and tablets: Apple iPad 1 & 2 = 6940mAh Battery Apple iPad 3 & 4 = 11600mAh Battery Apple iPhone 4 / 4S / 5 = 1400mAh Samsung Galaxy S1 / S2 / S3 / S4 = 1500mAh / 1650mAh / 2100mAh / 2600mAh Samsung Galaxy Note / Note 2 / Galaxy Tab = 3100mAh / 7000mAh HTC Smartphones (most models) = 1000-1700mAh Battery Nokia N70 / N80 / N90 Series = 1000-1500mAh BlackBerry 7000/8000/9000 Series = 1000-1250mAh Battery Google Nexus 7 / Nexus 10 = 4300mAh / 9000mAh Generally speaking, most smartphones have batteries in the 1000mAh to 1800mAh range, with older phones under 1000mAh. Technical Specifications: Input: 5V / 1A Output A: 5V / 1.0A Output B: 5V / 2.1A Lithium-Ion rechargeable core: 10,000mAh Large capacity Power Bank Charge time: 6 to 7 hours (faster if using a wall socket) Cycle Life: >500 Charge & Discharges Operating Temperature: -10°C to 40°C Other Features: 12 Month Cable Chick Warranty Large Capacity Romoss 10000mnAh Power Bank Dual Charging Outputs: 5V 2.1 Amps and 5V 1 Amp Fast charging support for compatible devices Can be used with the USB charge cable that comes with your device (cable not included) Tip: To preserve battery life, be sure to fully charge power bank at least every 3 months. Tip: From new, the power bank may require one or two charge/discharge cycles to reach peak efficiency. Size: 168x62x22mm