NewerTech NuPower Battery for MacBook Pro 17", NWTBAP17MBU03H
NewerTech Expands High Performance NuPower Battery Line for MacBook 13” & MacBook Pro 17” Unibody – Extends Life of Laptop up to 50% Over Factory – Keeps Your MacBook Running Like New
NewerTech, NuPower 74 Watt-Hour, Replacement Battery for MacBook Pro 13" 2009-2012 - Newegg.com
NewerTech NuPower Battery Replacement Kit for 15"
NewerTech NuPower Li-Ion Battery for 13" MacBook Pro (Retina Late 2013 to 2015) NWTBAP13MBPR71
NewerTech® : Batteries : NuPower® Batteries for MacBook® Pro 15-inch non-Unibody