As of 2015, refurbished batteries for an iPhone 4s are available through retailers such as Newegg.com. Craigslist.org and eBay.com also sell refurbished iPhone 4s batteries.
Computer parts and accessories store Newegg sells the refurbished batteries for under $40 each, as of 2015. The site also offers free shipping. Depending on the city area consumers search on Craigslist, consumers can find deals on the batteries. EBay features several individuals and merchants selling refurbished batteries within a broad spectrum of price points but offers a limited selection. Consumers on the site can either bid for a good deal or purchase the product immediately.