Should You Use Iphone While Charging. Now if you were like and illegally tethered from your iphone 3G that was jailbroken then the battery would continue to drain while plugged in yes but thats because it was. Its smart and slows down the charge appropriately whether you are using the device or not.
You can use your phone while its charging all you want. All you have to be careful of is not to use a sketchy third-party charger. Modern cell phone batteries are typically well protected by a battery monitoring circuit built into the battery.
While it is safe to use your iPhone while it is charging it is still a good idea to keep things under some sort of control.
Also whenever charging your iPhone make sure you do it in a cool location. The charging system on iOS devices is adaptive and only engages when the battery needs charging current. Apple says that you should charge your Apple lithium-ion battery. Likewise you should avoid discharging your iPhone all the way to 0 too.
