Can a 3rd party charger damage my macbook pro? I forgot my macbook pro charger at a friends place and I won't have it for a week. I saw that there are 3rd party chargers being sold for half the price of official chargers. Can 3rd party chargers damage my macbook pro? After I get my normal charger back in a week I will be mostly using that one and keep the new one as an extra, so I won't be using it fulltime.
It's unlikely they will actually damage your MacBook Pro by delivering too much power to it. But there are many cautionary tales to be found on the internet of third party chargers overheating, and occasionally catching fire or exploding. Technically, using a non-Apple charger without Apple's written permission may also void your warranty if anything did go wrong.

Personally, I wouldn't risk it.