Does the one plus one uses a specific charging adapter/power cable? I realised my phone charges faster using the original charger compared to an alternative (no brand) charger. But the specifications written on the charger is similar to the oneplusone, INPUT 100-240V. AC 550-60Hz. OUTPUT: DC 5.0V 5500mA+-5%
If it does have a specific charger, where can I buy a cheaper alternate charger with the same specifications as the original?