Hi all, so i've got my new macbook pro and seems like they have changed the charger, so my old ones (from macbook 2011) no longer work. So I need a new one for work - apple charge 65 quid, but you can buy "genuine" ones on eBay for 30 quid, or non genuine ones for 20 quid on eBay. Anyone done this? Any advantage or problems to buying the non genuine ones? And are the genuine ones really likely to be that?