In its statement, Apple said it would offer discounted iPhone batteries in response to concerns. Its battery program allows customers to either have their batteries replaced in store or mail them in for a replacement.

Attorneys representing New York resident Keaton Harvey on Jan. 15 filed a motion asking the judge to issue a temporary injunction blocking Apple from recycling batteries collected as part of the program. The case, which seeks class-action status, is in U.S. District Court, Northern District of California. The request was first covered by 9to5mac.com.

When affected phones are returned to Apple, company personnel run diagnostic tests and gather information from the devices, according to the motion.