Since USB 2.0 became a standard for charging port there are a couple of things happens. Devices got more and more battery capacity and that is why many fast charging protocols appear to overcome USB 2.0 default 2.5W (5v 0.5A). Those protocols were necessary to keep the same charging time with larger batteries. Some of those protocols were part of USB standard (like USB Battery Charging and USB Power Delivery) and some were not (like Apple 2.4A, Qualcomm QuickCharge, Mediatek PumpExpress+, and a lot of others).
Most chargers and power banks support only some of those fast charging protocols. So usually you will not get the fastest posible charging for all of your devices from the same source. For example power banks with Mediatek PumpExpress support is exceptionally rare devices. There are a number of power banks with Qualcomm Quick Charge or USB Power Delivery available, but not with Mediatek PE+. So below is three 10000 mAh power banks I found with MTK-PE support.
| Power Bank | Input, W | QC | PE+ | PD | other | price |
| Tqka KA058 | 20W QC2.0 | 3.0 | 1.1 | – | details | |
| Unitechi UTI01PD | 20W QC2.0 | 3.0 | 2.0 | 3.0 | details | 40$ |
| rock space P65 | 18W QC2.0 | 3.0 | 2.0 | 2.0 | details | 20$ |
All fast charging protocols that can be detected by WITRN U2
| Power bank/protocol | Tqka KA058 | Unitechi 01PD | rock space P65 |
| USB Power Delivery (18W) | – | PD3.0 | PD 2.0 |
| Apple 5v, 2.4A | + | + | + |
| Samsung 5v, 2.0A | + | + | + |
| USB Battery Charge 5v, 1.5A | + | + | + |
| OPPO VOOC, DASH | – | – | – |
| VIVO Dual Flash 5v,9v,12v | + | + | + |
| QC2.0 5v,9v,12v | + | + | + |
| QC3.0 | + | + | + |
| Samsung AFC, 9v | + | – | – |
| Huawei FCP 5v,9v,12v | + | + | + |
| Huawei SCP | – | – | – |
| PE+1.1 | PE+2.0 | PE+2.0 |