The Mega Jolt packs an 8,000 mAh Grade A Li-ion battery with a dual output. The first output is 5V/1A for charging smartphones and the second output is 5V/2.1A for charging tablets. Blue LED light indicators show how much power is left in the power bank. Also includes an LED light and USB to Micro USB connecting cable which can charge the battery backup or be used to charge up devices with a Micro USB input like Android smartphones from Samsung®, Motorola®, HTC®, Nokia®, and others.