Batterytec&reg; Laptop Battery for LENOVO THINKPAD Edge X121e X130e X131e E120 E125 E320 E325 Series, 0A36290 ASM 42T4948 FRU 42T4947 0A36292 FRU 42T4961 ASM 42T4962 FRU 42T4957.[11.1V 4400mAh ] Battery Type: Li-ion, Cells: 6-cell,Capacity: 4400mAh; Voltage: 11.1V 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.