Previously I had the PowerCore 26800 but it charged slow and I need something that can give me a good boost within 30min. After some research, I was set on two target:
PowerCore II 20000 and PowerCore Speed 20000 with QC3.0
they both have pros and cons
I just want to hear a third opinion before I make the decision, thanks
PS: Im thinking to upgrade to note 7R, so will QC be useful on note 7R as well? Caz I cant find the phone on the QC list, just wondering