Hi Donna, According to Apple, the one thing to beware of is the wattage of the mag-safe adapter you are using. Apple has produced mag-safe adapters in three different wattage levels: 85, 60 and 45. They say it is OK to use an adapter rated at a higher wattage but not one rated at a lower wattage than the particular macbook is designed for. The KB article below gives more details and includes tables of the various macbook models, their release dates, and their wattage requirements. Note this article is US-specific. http://support.apple.com/kb/ht2346
HTH, Bryan > On Mar 16, 2011, at 3:21 AM, Donna Goodin wrote: >> I'm going to be traveling the next few days, and will be staying with >> someone who has an MB pro that's about two-three years older than mine, i.e >> about 4-5 years old. Is there any reason I can't use her charger on my >> Macbook? -- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To post to this group, send email to macvisionaries@googlegroups.com. To unsubscribe from this group, send email to macvisionaries+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/macvisionaries?hl=en.