Macbook Air Charger, 45W Magsafe L-Tip Power Adapter Charger replacement for MacBook Air 11/13 inch (White)

I learned my lesson, this ended up killing my laptops battery. The Apple store told me that only authentic chargers should be used to prevent damage to your devices battery. I had no idea that I could bring in my old charger to get a discount on a new AUTHENTIC charger at the apple store....Do not buy this!

Power supply works great. No heat problems. Charges my laptop perfectly.