With Earth Day just around the corner, Apple announced it's quadrupling the number of locations US customers can send their iPhones for recycling. The company's recycling robot, Daisy, will now disassemble select iPhones returned to Best Buy stores in the US, KPN retailers in the Netherlands, as well as those recycled at any Apple Store or online through the Apple Trade In program. According to Apple, each of the Daisy robots can disassemble 1.2 million devices per year, or 15 different iPhone models at a rate of 200 per hour. Recovered materials are recycled back into the manufacturing process, and Apple sends the iPhone batteries Daisy removes to select manufacturing sites. There, for the first time, the cobalt is recovered, combined with scrap and used to make new batteries.