Voltage: 10.8V; Capacity: 4400mAh

Apple M9008 battery Description:

Replacement Apple 4400mAh Battery
Weight: 0.97lbs
Package Dimensions (LWH): 174.0 x 113.0 x 48.0(mm)
Brand: Replacement  
Model: A1079
Voltage: 10.8V
Capacity: 4400mAh
Type: Li-ion, 6 cells
Color: Silver
Unit Dimension : 129.10 x 81.20 x 20.00 mm

Warranty of Apple M9008 battery:

6 months