Apple Is Giving Away Free Batteries to Some iPhone 6s Owners

[f500link]Apple[/f500link] announced Sunday that it will swap out faulty batteries in certain iPhone 6s devices.

But before you race to the nearest Apple store to get your replacement battery, you should know that the offer is only good for phones manufactured in September or October 2015. The free battery is meant to fix a flaw in which the devices suddenly shut off even though there is battery life remaining.