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New iPad Bug Shows Inaccurate Battery Percentage While Being Charged

As of this time, the new iPad has already made its way into the hands of millions of people and to no one's surprise, it is a runaway success. While the specifications of the new iPad is nothing short of impressive, it is not without its fair share of problems such as the heating issues and weak WiFi connectivity. According to a new report, the new iPad is said to display inaccurate battery levels while it is being charged.

Apple New iPad
According to the findings of DisplayMate President Dr. Raymond Soneira, the third gen iPad continues to draw considerable amount of wattage even if the battery level has reached 100%. After a two hour charging cycle, the device actually prematurely reports that it has already reached the maximum charging capacity.

Soneira claimed that the findings were not corroborated and the problem may not be applicable to all the third-generation iPads. Fortunately, it seems that the problem is not hardware related and has something to do with the programmed charge rate of the iPad. Soneira found out that even if the device reports a 100% charge percentage after a two-hour charge time, the device continues to draw 10 watts of electricity. The power drawn then gradually decreases until it gets to a point that it stops, indicating that the charge cycle is finished.

The charge indicator on all mobile devices is based on a mathematical model of the charge rates, discharge rates, and recent discharge history of the battery. It uses this information to estimate how much running time is left. It's actually rather difficult to do because most batteries degrade slowly as they discharge and then tend to surprise with a precipitous decline near the end.

Apple claims that despite the more advanced, power-intensive components of the new iPad, battery life is pretty much similar to the iPad 2. This percentage indicator issue could mislead customers into thinking that their iPad is fully charged but of course in reality it is not, only to be surprised that their device runs out of juice quite rapidly.

As the problem is said to be software-based, Apple should be able to fix this during the next firmware update i-e iOS 5.1.1 [via ModMyi]

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