2 x 1650mAh Replacement Battery For Samsung Galaxy S2 II GT- I9100 And HoneyK&trade; 3 Colors Silicone Wrist Band Battery type: Li-ion; Voltage: 3.7V; Capacity: 1650mAh Grade A cells to ensure longer battery life and charge cycles More than 500 recharge cycles over the life of the battery Built-in circuit protection Includes HoneyK&trade; 3 Colors Silicone Wrist Band