If you're in the market for a battery pack and are looking for something large enough to carry you through more than a few full charges of your device, look no further than the Anker PowerCore 20100 battery pack. Normally this battery pack costs $79.99, but right now you can pick this up for just $26.99, but for today only and only if you're a Prime member as this is a Prime Day deal. This is a battery pack which holds 20,000mAh of power inside which is more than enough to charge most smartphones fully at least five times. The Anker PowerCore 21000 does not support Qualcomm's Quick Charge technology, but it does come equipped with Anker's own PowerIQ technology and VoltageBoost so that you can still get a rapid charge on your phone battery.
The Anker PowerCore 21000 will come with its own micro USB cord for charging the pack itself when it's dead, although you will still need to plug the micro USB into a wall adapter. The pack will charge back up to full from empty in about 10 hours with a 2amp charger, and double that time if a 1amp charger is used. The battery pack also comes with a travel pouch to keep it stored away nice and neat. In addition to PowerIQ and VoltageBoost, the Anker PowerCore 21000 comes with MultiProtect, which protects your phone battery from surges and short circuits. It also comes with an 18-month warranty in case something goes wrong with it.