Batterytec&reg; Laptop Battery for LENOVO IdeaPad M4400 M4450 M4450A V4400 V4400A Series, LENOVO Eraser M4400 M4400A M4450 M4450A Series,LENOVO Eraser B50 B50-30 B50-30 Touch Series, LENOVO Eraser B50-45 B50-70 N40 N40-30 N40-45 N40-70 N50 N50-30 N50-45 N50-70, LENOVO IdeaPad B40 B40-30 B40-45 B40-70 B50 B50-30 B50-30 Touch Series; LENOVO IdeaPad B50-45 B50-70 N40 N40-30 N40-45 N40-70 N50 N50-30 N50-45 N50-70; 121500191 45N1184 45N1185 4ICR18/65 4ICR19/66 L12L4E55 L13M4A01 L13L4A01. [14.4V 2200mAh, 1 Year Warranty] Battery Type: Li-ion, Cells: 4-cell,Capacity: 2200mAh; Voltage: 14.4V. 100% New Manufacturer. To 500 charging cycles during the lifetime of the battery. CE-/FCC-/RoHS-Certified for safety. 24 x 7 email support, 12 months Warranty without problems. Class A cells provide fast loads and low power consumption, chip protection offers both security and stability.