Apple is now fitting its new units of its second generation iPad 2 tablet with more efficient processors, offering users far improved battery life.
The unnannounced upgrade for the slate, which the company is selling for a reduced £329 since the launch of the new iPad 3, can give users an extra two hours of battery life when they're using the device to surf the web, play music or watch video.
The discovery was made by the AnandTech site, which revealed that Apple is now using a 32nm A5 processor instead of the 45nm chip that was used on the original device.
The processor's performance is the same, so there's no speed bump for new iPad 2 buyers, but the new chip consumes less power, meaning longer battery life.
Amand Lal Shimpi, who runs the site, says: "The gains themselves are significant. We measured a 15% increase in our web browsing battery life, a nearly 30% increase in gaming battery life and an 18% increase in video playback battery life. Although Apple hasn’t revised its battery life specs, the iPad 2,4 definitely lasts longer on a single charge than the original iPad 2."
Dubbed the "iPad 2,4," it's difficult for users to know which tablet they might be going as Apple is still moving the existing inventory.