can a 120w adapter be used instead of a 65w charger-i can select the voltage to the matching voltage

sirstinky

Honorable
Aug 17, 2012
45
0
10,610
9
Not a good idea. You can match the voltage, but not the output in amps/watts. That is what's important in this case. If the watts/amps are too high, then you can cause magical smoke to come out of your electronic devices...
 

sirstinky

Honorable
Aug 17, 2012
45
0
10,610
9
Not a good idea. You can match the voltage, but not the output in amps/watts. That is what's important in this case. If the watts/amps are too high, then you can cause magical smoke to come out of your electronic devices...
 

velocityg4

Distinguished
Nov 21, 2006
499
0
19,260
98


All that matters with Amps in an adapter is that it provides enough amps. If an adapter provides more amps. It does not cause any harm. All that means is that it is capable of providing more current should a device need it without overheating. That's all the amperage rating is. How much current can be provided without overheating or tripping some protection feature. It is no different than if you were to run a computer which only needs 300W with an 800W PSU.

Voltage is what matters. Too much or too little voltage can cause damage or stability issues.

Wattage is a measure of voltage times amperage. You can use a 120W power adapter just fine on a device that only needs 65W. As long as the following criteria are met. Voltage is the same, plug size is the same and plug polarity is the same. Then the only difference is it can provide more amps.
 
Thread starter Similar threads Forum Replies Date
T Laptop Tech Support 1
A Laptop Tech Support 1
P Laptop Tech Support 1
J Laptop Tech Support 1
P Laptop Tech Support 1
O Laptop Tech Support 7
M Laptop Tech Support 1
lgdragon040 Laptop Tech Support 1
I Laptop Tech Support 1
A Laptop Tech Support 1
D Laptop Tech Support 3
J Laptop Tech Support 1
JeckeL Laptop Tech Support 1
G Laptop Tech Support 1
G Laptop Tech Support 1
K Laptop Tech Support 2
J Laptop Tech Support 1
C Laptop Tech Support 1
R Laptop Tech Support 1
G Laptop Tech Support 5

ASK THE COMMUNITY