BND&reg; High Performance [with Samsung Cells] Laptop Battery for Acer Aspire 2930 4220 4310 4310G 4315 4320 4520 4530 4520G 4710 4710G 4710Z 4715 4715Z 4720 4720G 4720Z 4920 4920G 4935 5332 5516 5535 5536 5735z - [fits P/N AS07A31 AS07A32 AS07A41 AS07A42 AS07A51 AS07A52 AS07A71 AS07A72 BT.00603.036 BT.00604.015 BT.00604.022 BT.00605.018 BT.00607.012 BT.00607.013 BTP-AS4520G MS2219 MS2220 Z01 Z03] - 24 Months Warranty [6-Cell 5200mAh/58Wh] Equipped with Samsung grade A cells. Charges quickly. Longer discharge time. Steady output and low power consumption. More than 500 times charge-discharge cycles. Built-in circuit protection. Automatic power cut off at high electric current, voltage or temperature ensures safety and extended battery life. All BND Power products are CE-/FCC-/RoHS-Certified by reputable, qualified and accredited testing laboratories.Strict guidelines for compatibility, and standards compliance for product safety and environment safety and guaranteed to Meets or exceeds OEM standards to ensure compliance with environmental and safety requirement. Buy With Confidence. Operation time: 2-4 hours. Actual operation time varies depending on types of the device and the way it is used. 24 months hassle-free warranty service.We provide best prices possible on the highest quality products and the most popular brands. Please check if this battery is compatible with your computer before purchasing. Part numbers of compatible batteries and Computers are listed as following.