Iphone 4 battery replacement: your iphone 4 won't hold a charge? replace the battery on your iphone 4.. According to apple, iphone 7 offers up to 2 hours longer battery life than iphone 6s, and iphone 7 plus offers up to an hour longer battery life than iphone 6s plus.. In a post comparing the iphone 4s and iphone 4 battery life, macrumors reports that calibrating the battery can make a substantial difference in battery life, as “some [iphone 4s users] have found their battery gauge to be inaccurate until this is performed..
How to improve iphone x battery life: fix battery drain issue on iphone x, 8 plus or 8. facing battery drain issue on your iphone x? give these tricks a try to resolve the problem and improve your iphone x, iphone 8 plus or iphone 8 battery life.. Since the introduction of the iphone 5 and ios6, my iphone 4's battery doesn't seem to last that long. coincidence or just a government conspiracy,.... Have you downloaded apple's idrain? iphone users complain ios 10 has reduced the battery life of devices. iphone users have complained of reduced battery life since updating.