New Battery for APPLE A1280 MB771 MB771J/A MacBook 13" A1278,Capacity:52WH, Components:6 Cells, Voltage:10.8V Compatible with APPLE A1280 MB771 MB771J/A MacBook 13" A1278 Rechargeable Li-ion battery,Capacity:52WH, Components:6 Cells, Voltage:10.8V Long Battery life without having to frequently plug into recharge with the Notebook Battery, it guarantees the stamina you need for long work sessions and travel. Highest quality,advanced cell technology and true enhanced performance are guaranteed. CE ROHS Certification passed. 60-day money back and one year warranty offered.