Featuring a powerful 13000 mAh lithium battery, the PowerFlask lets you charge three devices at the same time. Charge two tablets and a phone, two phones and a tablet, three phones. Whatever you have that needs a charge, the PowerFlask assures you that you won't run out of juice when you need it most.
The capacity of the PowerFlask is 13000mAh; with a voltage of 3.7-4.0V, converted to digital products, the standard charging voltage should approximate 5V. As there will be some expended energy during said conversion, the general conversion rate will be in an approximate range of 80% - 96%. This allows you to calculate the numbers of times you can charge your device from a fully recharged PowerFlask.