Can I use a Mac air charger on my Mac book?
Can you charge a Mac book with a Mac air charger?
No the MacBook Air charger is 45 watt. You need a 60 watt. http://support.apple.com/kb/HT2346
You can get a new third party 60W power adapter on eBay for under $20.
http://www.ebay.com/sch/i.html?_nkw=macbook+power+adapter&_sacat=0&_sop=12&_dmpt =Apple_Laptops&_odkw=macbook+power+adapter&_osacat=111422&_trksid=p3286.c0.m270. l1313
Or for $80 from Apple http://store.apple.com/us/product/MC461LL/A?