Voltage: 15.2V Capacity: 50Wh Compatible with Lenovo ThinkPad X1 Carbon Gen3 2015 Series Laptop. Compatible with P/N: 00HW002 SB10F46440 00HW003 SB10F46441. Top SafetyAll our products are made with the top quality and workmanship. Built-in circuit protection ensures both safety and stability. These chargers meet the highest industry safety and quality level. Service & Support6Months Exchange Guarantee: If you are not satisfied with the charger for any reason, or the charger has any problems, please let us know. We will try our best to solve it for you.