The charger is 1.5-3 times faster than the normal charger and more secure as it is always cooling by a built-in fan.
Compare to the normal 2A charger, an empty 14Ah battery would need about 7 hours to fully charge.
The 3A fast charger would take less than 5 hours so makes a more than 2 hours difference. And the charger itself is still cool as room temperature.
The wall plug cable can be replaced to other styles as it is same as the PC power cable. So it can be used worldwide and fits all voltage.