Batterymarket 11.4V 3220mAh 36Wh Li-ion Polymer Battery AC14B18J for Acer Chromebook 11 CB3-111 Aspire ES1-512 AC14B18J 3ICP5/57/80 Battery type: Li-ion. Capacity: 3220mAh 36Wh Voltage:11.4V. Color: Black. 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. CE-/FCC-/RoHS-Certified for safety. 24 x 7 email support,12-month hassle-free warranty. Operation time for standard batteries( 3220mAh 36Wh Voltage:11.4V): the actual operation time will depend on how much electricity is required by the device and how you use it.