Upgrade your Apple MacBook's battery life with the NewerTech NuPower Battery. This high-quality battery has a capacity of 60 Watt-Hours and is made with 4 Li-Ion cells. It is compatible with MacBook 13” from late 2006 to early 2009 and has a voltage of 7.6V. The black battery is manufactured in China. Perfect for those who need longer battery life on their laptop.