[SOLVED] Laptop Charger confusing 65watts or 120watts as per Asus Site

Sep 9, 2020
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Hello so i buy a laptop from ebay without charger now when i check the specification laptop model "ASUS X550JF-MS71 "
https://icecat.biz/en/p/asus/x550jf-ms71/notebooks-x550jf-ms71-28347742.html

Now it really confusing about the charger do I need to buy 120watts or 65 watts

Output :
19 V DC, 3.42 A, 120 W
Input :
110 -240 V AC, 50/60 Hz universal

I already research 19V 3.42 A = 65W
is 120W is the Max Power output?
 
Solution
120W is the max power output. So it might be a bit overkill for what you really need.

Sometimes the input specs list the board consumption power and not the battery charging power which would be on top of board power.
Sep 9, 2020
2
0
10
@digitalgriffin thank you so much for your answer so i ask customer support of asus to confirm

=hey El thanks for holding your device comes with a 120W19V 3PIN charger I am just looking to find it on our store for you.

-thank you so much for your help so this charger is DC output: 19V 6.32A not 3.42A

= Yes

I'm just curios as why this latop use 120watts and yet its no a gaming laptop
 
@digitalgriffin thank you so much for your answer so i ask customer support of asus to confirm

=hey El thanks for holding your device comes with a 120W19V 3PIN charger I am just looking to find it on our store for you.

-thank you so much for your help so this charger is DC output: 19V 6.32A not 3.42A

= Yes

I'm just curios as why this latop use 120watts and yet its no a gaming laptop



Again it all depends on how they rate that input power. Is that board power or board power + charging.

Picking a bigger supply will not work against you. The laptop will only take what it needs.

As a rule of thumb you want to aim for a power supply that is 20% Larger than what your max input should be. This helps ensure stability and a long life. So an 75W->80W supply wouldn't be a bad choice IMHO. But if board power + battery power goes over the limit, your laptop may run in reduced power mode. My wife's HP did this with a substitute generic adapter. (Popped up with a warning as well about the power supply being too small)

New Egg showed a 120 Watt supply also.