4 Replies Latest reply: Sep 28, 2010 8:38 AM by Malcolm Rayfield
ispriteu Level 1 Level 1 (0 points)
When iPhone is charging while turned on, the battery is charging AND discharging at the same time (because the phone is always fonctioning and consuming battery power even if it's sleeping). That's not good for the overall battery lifespan in the long run, am I right? As far as I know, only the China Unicom iPhone 4 model can charge while turned off (see http://support.apple.com/kb/HT1476). Do you think the fact of charging while turned on will ever have an impact on its lithium-ion battery?

iPhone 4, iOS 4