If you are using your iPad while charging, it will take even longer. The new iPad has a larger capacity battery (42 watt-hours), so using the 10W charger will obviously take longer. It will charge to 100% in 4 hours 2 minutes. 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.
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