20.000 mAh = 10x
2x mA
Load speed Ampere shortened to Amps is the measurement of the flow rate of electric charge . All power banks are assessed for their rating . 1Amp is suitable for smart phones but you need 2.1Amp or higher to charge Tablets .
15.000 mAh = 7x
1,5x
10.000 mAh = 5x
1x
5.000 mAh = 3x
0,5x
2.000 mAh = 1x
The iPad Air 2 has a battery capacity of around 8.000 mAh . To charge this device completely your Power bank will need a capacity of 10,000 mAh .
How does a power bank work ? The amount of energy that you can store in a power bank is expressed in mAh ( milliampere-hours ). The number of mAh indicates how much power a battery can deliver continuous per hour . A 1.500 mAh battery must be able to deliver at least 1500 milliamps for one hour . To charge your smartphone or tablet , you need to know the battery capacity and an external battery with the same or greater capacity to connect to fully charge your device . If you connect a power bank with a lesser capacity your device is charged but never quite 100 %. Finally it is worth considering the Amps your powerbank outputs , 1A is suitable for smart phones but for Tablets you will need a 2.1A or upwards .
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