Use an extra adapter for home or work.
The 45 Watt MagSafe 2 Power Adapter features a magnetic DC connector that ensures your power cable will disconnect if it experiences undue strain and helps prevent fraying or weakening of the cables over time.
In addition, the magnetic DC helps guide the plug into the system for a quick and secure connection. When the connection is secure, an LED located at the head of the DC connector will light; an amber light lets you know that your portable is charging, while a green light tells you that you have a full charge.
This power adapter recharges the lithium polymer battery while the system is off, on, or in sleep mode.
It also powers the system if you choose to operate without a battery.

Input: AC 100-240V,1.5A 50-60Hz
Output: DC 14.85V-3.05A
Power: 45W
Interface: 5 Pin T- Tip Magnetic Interface (Replacement for Magsafe 2)
LED indicator: amber for charging; green for full charge.

Compatible Part Number:
A1435, A1465, A1436, A1466, MD223, MD224, MD231, MD232,MD592

Compatible Models:
MacBook Air Mid 2012: MD223LL/A (1.7 GHz Core i5)
MacBook Air Mid 2012: MD224LL/A (1.7 GHz Core i5)
MacBook Air Mid 2012: MD224LL/A (2.0 GHz Core i7)
MacBook Air Mid 2013: MD711LL/A (1.3 GHz Core i5)
MacBook Air Mid 2013: MD712LL/A (1.3 GHz Core i5)
MacBook Air Mid 2013: MD712LL/A (1.7 GHz Core i7)
MacBook Air Early 2014: MD711LL/B (1.4 GHz Core i5)
MacBook Air Early 2014: MD712LL/B (1.4 GHz Core i5)
MacBook Air Early 2014: MD712LL/B (1.7 GHz Core i7)
MacBook Air Early 2015: MJVM2LL/A (1.6 GHz Core i5 or 2.2 GHz Core i7)
MacBook Air Early 2015: MJVP2LL/A (1.6 GHz Core i5 or 2.2 GHz Core i7)
MacBook Air 13" A1466
MacBook Air Mid 2012: MD231LL/A (1.8 GHz Core i5)

MacBook Air Mid 2012: MD231LL/A (1.8 GHz Core i5)
MacBook Air Mid 2012: MD232LL/A (1.8 GHz Core i5)
MacBook Air Mid 2012: MD232LL/A (2.0 GHz Core i7)
MacBook Air Mid 2013: MD760LL/A (1.3 GHz Core i5)
MacBook Air Mid 2013: MD761LL/A (1.3 GHz Core i5)
MacBook Air Mid 2013: MD761LL/A (1.7 GHz Core i7)
MacBook Air Mid 2014: MD760LL/B (1.4 GHz Core i5)
MacBook Air Mid 2014: MD761LL/B (1.4 GHz Core i5)
MacBook Air Mid 2014: MD761LL/B (1.7 GHz Core i7)
MacBook Air Early 2015: MJVE2LL/A (1.6 GHz Core i5 or 2.2 GHz Core i7)
MacBook Air Early 2015: MJVG2LL/A (1.6 GHz Core i5 or 2.2 GHz Core i7)
MacBook Air MD592LL/A (Newest Version)
MacBook Air (11-inch, Early 2015)
MacBook Air (13-inch, Early 2015)
MacBook Air (11-inch, Early 2014)
MacBook Air (13-inch, Early 2014)
MacBook Air (11-inch, Mid 2013)
MacBook Air (13-inch, Mid 2013)
MacBook Air (11-inch, Mid 2012)
MacBook Air (13-inch, Mid 2012)

Package Included:
1 x 45W Power Adapter for Apple MagSafe 2 45W Computers

*This is compatible product not Apple product