The Anker Advantage: Join the 10 million+ powered by our leading technology. Battery type: Li-Polymer; Capacity: 5600mAh; Voltage: 10.8V. Superior Quality: Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and reliability. Certified Safe: CE, FCC and RoHS certified to ensure superior performance and safety. What You Get: 1 x laptop battery, our fan-favorite 18-month warranty and friendly customer service.