NewerTech 58.2W NuPower Battery Replacement... at MacSales.com
Should I get the iFixit or NuPower battery (read comment) : r/mac
High Capacity Battery For Apple MacBook 13" White
Newer Technology® : News Room : Press Article : Review of NewerTech NuPower Battery for all MacBook Pro 17-inch non-Unibody by Tomas Ratas, from TestFreaks
NewerTech NuPower Li-Ion Battery for 13" MacBook Pro (Retina 2012 to Early 2013) NWTBAP13MBPR74
NewerTech NuPower Battery for MacBook Pro 15", NWTBAP15MBU54RS
NewerTech NuPower International Battery NWTBAP15MBPR84I B&H
The PC Weenies | First Impressions: NuPower Macbook Pro Replacement Battery