PortaCell (High Capacity 6600mAh/71Wh, 10.8V) Laptop Battery A1189 , MA458 for Apple MacBook Pro 17" A1151, MA092 PortaCell (High Capacity 6600mAh/71Wh, 10.8V) Laptop Battery A1189 , MA458 for Apple MacBook Pro 17" A1151, MA092 Brand-new OEM compatible replacement, meets or exceeds OEM spec. FREE UPGRADE to USPS Priority Mail service on all orders over $75- (delivers within 2 days to most cities)! PortaCell USA is a licensee of Call2Recycle to advance green business practices and environmental responsibility