Blog
Fast charging explained simply
Fast charging just means your phone and charger agree to send more power for a short burst, then slow down once the battery fills up. It is not magic, and it will not harm your phone if the charger and cable are matched to it. Your phone has a small chip that controls this and keeps things safe.
The catch is that not every charger and cable combination can reach full speed. An old cable or a basic charger will simply charge at the slower, standard rate instead.
Watts And Amps
The catch is that not every charger and cable combination can reach full speed. An old cable or a basic charger will simply charge at the slower, standard rate instead.
To get real fast charging, match the charger's wattage to what your phone supports, and use a cable rated for it. Mixing an old cable with a new charger often means you lose the speed and gain nothing.
Heat And Health
Fast charging does make a phone warmer, and heat is the thing that ages a battery over time, not speed on its own. A phone with good thermal management will slow itself down if it gets too hot, which protects the battery automatically. The bigger risk is charging a hot phone under a pillow or in direct sun, where the heat has nowhere to go.
If you want to look after your battery, let your phone manage its own charging speed rather than forcing it with an uncertified charger. Buy a charger and cable rated for the same wattage, keep your phone cool while it charges, and don't worry about using fast charging every day. It won't wear your battery out any faster than careful, slow charging does, as long as the gear you're using is properly made.
71 Pilgrim Avenue
Chevy Chase,
MD 20815
