BE&middot;SELL 11.1V 5200mAh New Laptop Battery for Asus A31-K52 A32-K52 A41-K52 A42-K52 A52 A52F A52J K42 K42F K42F-A2B K42JB K52 K52F K52 K52JE K52JK K52JR Voltage:11.1v Capacity:5200mah 6-Cell Compatible P/N:70-NXM1B2200Z 90-NYX1B1000Y A31-K52 A32-K52 A41-K52 A42-K52 A31-B53 Fit for Asus A52 Series A52F A52J A52JB A52JK A52JR A52JR-X1 Asus K42 Series K42F K42F-A2B K42JB K42JK K42JR K42JR-VX047X K42JV Asus K52 Series K52F K52JB K52JC K52JE K52JK CE-/FCC-/RoHS-certified for safety,Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. 12 Months Warranty,30 days money back guarantee!!!