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Deze versie is geschreven door: bac ,

Tekst:

here's the definitive answer: YES, you can use a higher rated power adapter with your MBA (or whatever) with no ill effect.
 
see this KB article from Apple: http://support.apple.com/kb/HT2346
 
the power rating of the adapter is simply the maximum power that it can supply. the voltage of these adapters is all the same (I think around 18.5volts?), so it simply means the higher rated adapters are *capable* of providing higher current if necessary. some of the models require the higher current to charge their batteries, therefore those machines ship with higher wattage chargers. Your MB Air will just draw the same amount of current whichever adapter is usedused, as long as the minimum wattage is provided.

in the reverse case, if you use too low a wattage adapter (e.g. 45W one on a MB Pro), there won't be enough current to charge the battery, although you can run it off AC power while plugged in
.
the power rating of the adapter is simply the maximum power that it can supply. the voltage of these adapters is all the same (I think around 18.5volts?), so it simply means the higher rated adapters are *capable* of providing higher current if necessary. some of the models require the higher current to charge their batteries, therefore those machines ship with higher wattage chargers. Your MB Air will just draw the same amount of current whichever adapter is usedused, as long as the minimum wattage is provided.

in the reverse case, if you use too low a wattage adapter (e.g. 45W one on a MB Pro), there won't be enough current to charge the battery, although you can run it off AC power while plugged in
.

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Origineel bericht door: bac ,

Tekst:

here's the definitive answer: YES, you can use a higher rated power adapter with your MBA (or whatever) with no ill effect.

see this KB article from Apple: http://support.apple.com/kb/HT2346 

the power rating of the adapter is simply the maximum power that it can supply. the voltage of these adapters is all the same (I think around 18.5volts?), so it simply means the higher rated adapters are *capable* of providing higher current if necessary. some of the models require the higher current to charge their batteries, therefore those machines ship with higher wattage chargers. Your MB Air will just draw the same amount of current whichever adapter is used.

Status:

open