With a powerful 6000mAh internal battery, the Portable Tablet Charger will keep your devices charged wherever and whenever you need them. Capable of charging your Smartphone four times and your tablet completely, the Portable Tablet charger is your ideal travel companion. Size - Design Despite it’s powerful 6000mAh Lithium Polymer battery, our Portable Tablet Charger is both lightweight and portable. A sand finished texture on the housing delivers not only an attractive design feature, it also prevents the unit from slipping from your hand should the weather be unfavourable.. Battery Without wanting to get too technical, there are two variants of Lithium rechargeable cells. Lithium Ion is a liquid battery that is larger and subject to safety concerns on leakage. We opt for Lithium Polymer batteries, a dry cell. By using Lithium Polymer batteries we are able to provide not only a more reliable and safe charging solution, but also a portable solution that is considerably smaller than Lithium Ion options. Simultaneous Device Charging - Dual USB Ports The Portable Tablet Charger has two USB ports to allow for simultaneous device charging on the go. This could be your tablet and smartphone, or any USB powered device. Intelligence - Intelligent Charge Circuit (IC) Rather than confuse you with knowing the correct power level for your device, the IC chip that we built into all our USB charge options as standard automatically detects the correct charge level for your device. Providing an efficient charge without wasted energy preserves the life of the battery and avoids damage to your connected device. Each USB Port acts independently varying the voltage to the correct level for your device(s).