Fast Chargers buying guides
Fast chargers only help if your phone or laptop can use the speed. Both the charger and the device have to speak the same fast-charging language, and the cable has to carry the power too. Check the watts your device can take, then match the charger to it. Buying a much bigger one won't hurt, but you won't gain anything past what the device accepts.
We haven't published a Fast Chargers guide yet. We only publish a guide once the research behind it is done.