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  Photo courtesy of MICGadget
  A comparison shot of the iPad 3

The new iPad is launching Friday, and one of the underlying issues with the device is its 42.5-watt-hour rechargeable lithium-polymer battery, according to many tech news outlets.

It will take longer to charge the new iPad compared to the iPad 2, numerous tech experts have claimed. That may not seem too bad, but some have claimed that the new iPad could even take "hours" longer to receive a full charge and be ready to perform at optimum level.

"While we're waiting for iFixit to tear apart the new iPad so we can get a look at the device's new 42.5-watt-hour rechargeable lithium-polymer battery, we have received some confirmation that the battery does take hours longer to charge than the iPad 2," 9to5Mac has said.

The battery life remains the same as previous models with the 70 percent larger battery giving most of its power to the high-definition Retina display, A5X chip and LTE connection.

Tech writer MG Siegler also confirmed that the new iPad does in fact take several hours more than the iPad 2 to charge after performing a review of the device on TechCrunch.

"So how was Apple able to keep the battery life the same while adding LTE and without drastically changing the design," wrote Siegler. "It appears they've had a fairly major breakthrough in their battery technology."

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Even though the battery has remained the same size as those included in previous generation iPads, the company needed to increase the charge time in order for it to function for the same amount of time as the older models.

Siegler recommends that owners of the new iPad charge it overnight regularly. He also pointed out that there is a noticeable warmth coming from the bottom left corner of the tablet. "It's never hot, just warm," he said.

The Verge also confirmed that the new iPad gets a little warm in its review.