Bay Valley Parts 9 Cell 7800mAh Laptop Battery for Asus A32-k52/A31-k52/A41-k52/A42-k52/A31-b53 A40J A40JA A42 A52 A52f A52j K42 K42j K52 K52j K52jk K62 P52 P52F P52JC P62 Series X42 X 52 Series Battery type: Li-ion; Capacity: 84Wh; Cells:9-cell; Voltage: 11.1V;Capacity:7800mah. High quality grade "A" cells. Charges quickly. Longer discharge time. Steady output and low power consumption. More than 500 times charge-discharge cycles.All products are Certified by CE ROHS UL1642 FCC for safety. Operation time for standard batteries(9-cell 7800mah): Around 3 hours the actual operation time will depend on how much electricity is required by the device and how you use it. 24 x 7 email support 12-month service. Compatible Models: For ASUS A31-K52 A32-K52 A41-K52 A42-K52 A31-B53 K52L681 A40DE A40DR A40DY A40F A40JB A40JC A40JK A40J A40JA A40JE A40JP A62 A62-9426 A62-9485 B53 B53F B53J B53JC D716 F85 F86 K42 K42 Series K42D K42DE K42DQ K42DR K52 K52 Series K52D K52DE K62 K62F P42 P42F P42J P42JC P52 P52F P52F-SO006X P52F-SO017X P52F-SO033X P52F-SO034X P52J X42DQ X42DR X42DY X42JA X42JC X42JP X52B B52BY X52DY X52JT X52JU X52JV X52S X5ID replacement notebook laptop battery batteries 12-months hassle-free warranty service. Please check if this battery is compatible with your computer before purchasing. Part numbers of compatible batteries and Computers are listed as following.