Why does the PB4600 provide less than a 4600mAh charge to my devices?
Energy stored in the most popular external batteries is 3.7V. To match the input voltage required by most mobile devices (4.89V), the PB4600 converts its stored energy to that of the connected device. An estimated 30% power loss from this conversion is common for the best & most popular external batteries in the market.
Why is there a red "X" over the battery symbol of my device when being charged by the PB4600?
Please use the charging cable included with your mobile device. If you see a red "X" when using this cable, make sure the cable is working properly. If it is, use the cable included with the PB4600 to charge.
Why are the LED indicators not 100% accurate in relaying the remaining energy stored in the PB4600?
The LED's may need to be recalibrated if the PB4600 was not fully recharged. In order to recalibrate the LED's, connect the PB4600 to a USB charging device until all 4 LED indicators are solidly lit.
Why does the PB4600 not charge my iPad as fast as the charger included by Apple?
The PB4600 has a max output of 2A while the newest, full sized iPads have a max input of 2.4A. The PB4600 will still charge these iPads, just a slightly slower pace.