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Do you own a 2012 or 2013 MacBook Pro with a run-down battery? You might be eligible for an upgrade! 

According to Tech Radar and Mac Rumors, Apple is offering replacements to owners of 15-inch MacBook Pro with Retina display notebooks, that need a battery replacement. 

They say that Apple is short on the part needed to fix them. To inquire about a replacement, Tech Radar says that the battery "must hold less than 80% capacity on maximum charge" and have been "fully charged less than 1,000 times.

Customers can opt for a replacement model or strike a trade-in deal on a new laptop. Tech Radar adds that the shortage may run until September, when Apple would then cover the cost of a new battery.