Replace Rechargeable Li-on Laptop Batteries Specification Battery type: Li-lon Item No.: AC10B61-6 Voltage: 11.1V Capacity: 4400mAh/5200mAh Color: Black Product Type: Replace battery Warranty: 12 months warranty Condition: Brand New!! Label model NO. AS10B61/AS10B51/AS10B41/AS10B31/AS10B7E/AS10B6E/AS10B5E/AS10B3E/ AS10E36 Fits Models ACER:4745/4745G/5745G/5745DG/3820TG/4820TG/5820TG Series