Anker Li-ion 5200mAh/58Wh Laptop Battery for Select Dell Inspiron and Dell Vostro models (AK-90DLN3010-B52A) Battery type: Li-ion; Capacity: 5200mAh/58WH; Cells: 6-cell; Voltage: 11.1V. 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. CE-/FCC-/RoHS-Certified for safety. 24 x 7 email support, 8-hr x 5-weekday call support, 18-month hassle-free warranty. Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. Operation time: Around 2.5 hours. In reality, this will depend on the amount of electricity required by the device and how you use it.