Powerocks Stone 3 High Capacity Portable Power Bank Battery life (or lack of) is no longer an issue thanks to the Stone 3. This mini power station can charge any electronic device (provided there is a USB (Universal Serial Bus) connection at one end) as quick as the mains. The Stone 3 has a huge capacity of 7800m Ah, which means it can charge an iPhone 4S 5 times between charges. The Stone 3 is also capable of charging 2 devices simultaneously, no difficult decisions as to which device you need to charge first. This is a must for anyone who is spending a few days away from home, whether you are at a business meeting, a festival, sporting events or simply going on holiday as you wont need lots of different chargers. Travel smart, travel light! RRP = £69.99 Feature: Simple, easy to carry High capacity with 7800m Ah Available for apple products (Apple Authorised) & any other items that have a USB (Universal Serial Bus) connection, such as tablets, smart phones, cameras Brand name LED indicators Dual USB (Universal Serial Bus) port design supports 2 devices simultaneously charging Environmentally Friendly Low self-consumption, less than 50u A Can charge an iPad to 92% in 3 hours Charges at the same speed as a mains connection Gives you an extra 10 hours battery life on your iPad Can charge an iPhone 4S 5 times between charges Can be recharged thousands of times Specifications: Capacity: 7800m Ah Output 2: 5V/2.0A Dimension: 75x 75x 27mm