How to repair the Apple MagSafe2 Power Adapter with a Damaged Wire
Tools
These are some common tools used to work on this device. You might not need every tool for every procedure.
Background and Identification
MagSafe 2 features a magnetic connector with a slightly thinner profile, with a cord that sticks straight out from the MacBook in a "T" shape (as opposed to the 90-degree "L" shaped design on the original MagSafe).
All MacBooks and MacBook Pro models can charge on any of the 60 watt or 85 watt AC adapters.