Power: 85 W, Input: AC 100-240 V, 50-60 Hz; Output: DC 18.5 V – 4.6 A; Magsafe2 connection (T-tip); Replacement charger Compatible with power adapter Compatible with Apple MacBook Pro 15 after 2012 with model: A1398 MACBOOK PRO 13 after 2012 with model: A1425 A1502; Replaces charger A1424, not compatible with MacBook Pro 15 inch, MJ2C, 2mga, ME293, ME294, ME664, ME665, MC975, MC976 MACBOOK PRO 13 inch MD212, MD213, MD662, MGX7, ME864, ME865, ME865MF839, MF840, MF841. An LED light provides feedback; An amber light indicates that your laptop is charging, while a green light indicates that it is fully charged. Replacement chargers are made from the highest quality materials and include multiple smart features safeguarding against IV - incorrect voltage, SC - short circuit, IO - internal overheating. It is held in place magnetically, so if someone trips over it, the cord disconnects harmlessly and your laptop Compatible with remains safe.