Hi my I phone is not charging while it is on and when switch off it start charging???
It is not uncommon for some devices to be unable to accept a charge while in use - especially if not using the supplied charger. This is because the amount of power required to USE the device (your iPhone in this case) exceeds the amount of power provided by the charger.
If trying to make a call, you may be able to coax your iPhone to accept a charge if you shut down un-needed services such as wifi, GPS and BlueTooth radios along with turning the brightness of the display down, etc. This greatly reduces the power requirements of the phone; and if the charger is powerful enough, it will begin to slowly charge your phone. The charge rate will be significantly lower - requiring a longer time on the charger - whenever the phone is being used AND charged. Once the phone is no longer being used, the charge rate will immediately increase, since AC power no longer has to be divided between charging the battery and operating the phone lights, radio, etc. This shortens the amount of time needed to recharge, significantly.
Whenever possible, use the the supplied charger - or one with the SAME voltage, polarity, and voltage type (AC or DC). The amount of current or wattage should be the same or greater than the original. Most phones use USB connectors and are 5 Volts DC. USB standards call for between 1/2 and 1 Amp current. Since watts is equal to volts x amps, this example would represent a 2.5 (if 1/2 amp) to 5 (if 1 amp) watt charger. If you could find a higher wattage charger while still maintaining the DC voltage requirements, you would be able to use and charge the phone at the same time.
I hope this answers your charger question & good luck!
Sep 04, 2012 |