Latest test results from various sources including PCWorld Labs have shown that the new iPad barely charges if it is used simultaneously. The new iPad fares very poorly in this aspect as it takes nearly 6 complete hours for a complete charge, which puts it at the bottom of the list of the 43 tablets tested by PCWorld.
One of the test conducted on the iPad initially had the battery drop down till 3 percent following which it was hooked on to the charging port. LTE was disabled but Wi-Fi continued to be turned on and the device usage continued for about five hours during which the battery did not charge at all and remained static at 3 percent throughout the five hours. Some users have even reported that the battery level drops while charging if used, though this has not been tested and confirmed by PCWorld. The problem is not isolated to the usage of processor or performance intensive apps or the like and the battery recharge time is just as bad when viewing photos or checking your mail.
A staff editor at Macworld, Leah Yamshon also reported that her new iPad actually dropped a point in battery when she was trying to download apps from the App Store with the power plugged in. This problem however seems to be isolated to the new iPad and is not present in the iPad 2. Under similar conditions, the iPad 2 charged considerably quicker when compared to the new iPad.
One of the reasons for this could be the larger capacity of the new iPad which has a battery which is larger than the iPad 2 by about 41 percent and has the highest mAh rating when compared to any of the tablets tested. The new iPad has an 11666mAh battery which takes 5 hours and 46 minutes to reach a full charge, which is way more than the previous version which is able to reach a full charge level in 4 hours and 10 minutes. The Asus Transformer Prime posted the most impressive battery recharge time of about 2 hours 41 minutes for a reasonably large battery size of 6930mAh.
The new iPad has also recently been found to have heating issues with reports stating that it runs at as much as 10 degrees higher than the iPad 2.