![]() ![]() How to Calibrate Your Mac, iPhone, or iPad BatteryĪt this link, tests show that the iPad 2 battery (25 watt-hours) will charge to 90% in 3 hours 1 minute. If iPad is connected to a computer that’s turned off or is in sleep or standby mode, the iPad battery will continue to drain.Īpple recommends that once a month you let the iPad fully discharge & then recharge to 100%. ![]() Make sure your computer is on while charging iPad via USB. When attached to a computer via a standard USB port (2.5W, most PCs or older Mac computers) iPad will charge very slowly (but iPad indicates not charging). iPad will also charge, although more slowly, when attached to a computer with a high-power USB port (many recent Mac computers) or with an iPhone Power Adapter (5W). ![]() The quickest way (and really the only way) to charge your iPad is with the included 10W or 12W (5W on Mini) USB Power Adapter. (This is equivalent to rebooting your computer.)Īnd this - Unplug the charger from the iPad and then replug. Try this first - Reset the iPad by holding down on the Sleep and Home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons. Usually about 5-7 hours unless you are using it.
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