Can I Use 85w Charger Instead Of 60w. This also applies to the 60W and 85W Macbook chargers. For example if your original adapter is MagSafe 45W that means the maximum current your laptop need is 305A in this case if you use MagSafe 85w power adapter your laptop only pull 305A current also although the 85W Power adapter can supply 46A current.
Max amps must be at least as much as the original can be higher. Then the bigger the better to some degree. Wattage MUST be at least as much as the original charger can be higher without problems.
Important and thats why using the wrong charger can cause trouble.
It is the amount of power they can deliver to the laptop. I used to use an 85w MagSafe charger with my 13 MacBook pro all the time. It delivers 25W more power or 40 more than the 60W charger. It is only pulling 5604 watts well within the limits of.
