Hello, I have purchased a fuitsu laptop that requires a 20V / 3.25A power supply. However, I couldn't get a power supply so I connected an ASUS 19v / 3.15A power supply. I have a question if something can be damaged in the laptop (the batteries were removed).

It will not damage, at most it will charge the battery slower. It is generally accepted that the current should not be lower than the rated current, but I have been using such power supplies for years ...

Rather, nothing should happen. I, too, have been doing such replacements of power supplies (19 and 20 V) for a long time and nothing happened to the computers or power supplies.

Cool . You can put the battery on and use it calmly. I use an old Siemens (19 or 20V) for diagnostics, it works without a battery, connected to the cigarette lighter without a power supply.

So far I have not noticed any disturbing symptoms, but maybe someone else will add some comments. I took out the battery because it doesn't work anyway, so why should you charge and additionally load the power supply. PS. The power supply does not heat up above the norm.

Damage, nothing will be damaged, but I will present a different opinion. The power supply should be original, as complications may arise over time. I have 2 power supplies with the same parameters 19V / 3.42A ASUS and Toshiba. ASUS on the Toshiba power supply stops turning on after some time ...

There is nothing to develop ... You have to use original power supplies and that's it.

It cannot be ruled out that this is a power supply problem. After all, the Asus current does not differ from the Toshiba brand current.

Dell has an additional pin in its power supplies (plugs), on which there is a signal identifying the power supply, if you connect a weaker than required one, it will block the processor multiplier and will work with a lower clock speed

[Solved] Insufficient Laptop Power Supply? Fujitsu 20V/3.25A vs ASUS 19V/3.15A Compatibility & Risks

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#1 16989399 26 Jan 2018 08:43

fuitsu staszek fuitsu staszek

Level 7

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Post #1
16989399 26 Jan 2018 08:43

Hello, I have purchased a fuitsu laptop that requires a 20V / 3.25A power supply.
However, I couldn't get a power supply so I connected an ASUS 19v / 3.15A power supply.
I have a question if something can be damaged in the laptop (the batteries were removed).
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#2 16989420 26 Jan 2018 08:55

dr.master dr.master

Level 39

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Post #2
16989420 26 Jan 2018 08:55

It will not damage, at most it will charge the battery slower.
It is generally accepted that the current should not be lower than the rated current, but I have been using such power supplies for years ...
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#3 16989427 26 Jan 2018 08:58

gimak gimak

Level 41

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Post #3
16989427 26 Jan 2018 08:58

Rather, nothing should happen. I, too, have been doing such replacements of power supplies (19 and 20 V) for a long time and nothing happened to the computers or power supplies.
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#4 16989433 26 Jan 2018 09:02

Anonymous Anonymous

Anonymous

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Post #4
16989433 26 Jan 2018 09:02

fuitsu staszek wrote:
I have a question if something can be damaged in the laptop (I took out the batteries)
Cool . You can put the battery on and use it calmly. I use an old Siemens (19 or 20V) for diagnostics, it works without a battery, connected to the cigarette lighter without a power supply.
#5 16989531 26 Jan 2018 09:55

fuitsu staszek fuitsu staszek

Level 7

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Post #5
16989531 26 Jan 2018 09:55

So far I have not noticed any disturbing symptoms, but maybe someone else will add some comments.
I took out the battery because it doesn't work anyway, so why should you "charge" and additionally load the power supply.
PS. The power supply does not heat up above the norm.
#6 16989541 26 Jan 2018 09:58

Anonymous Anonymous

Anonymous

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Post #6
16989541 26 Jan 2018 09:58

fuitsu staszek wrote:
I took out the battery because it doesn't work anyway, so why should you "charge" and additionally load the power supply.
Bright and lawful!
#7 16989559 26 Jan 2018 10:05

safbot1st safbot1st

Level 43

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Post #7
16989559 26 Jan 2018 10:05

Damage, nothing will be damaged, but I will present a different opinion.
The power supply should be original, as complications may arise over time.
I have 2 power supplies with the same parameters 19V / 3.42A ASUS and Toshiba.
ASUS on the Toshiba power supply stops turning on after some time ...
#8 16989584 26 Jan 2018 10:15

Anonymous Anonymous

Anonymous

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Post #8
16989584 26 Jan 2018 10:15

safbot1st wrote:
I have 2 power supplies with the same parameters 19V / 3.42A ASUS and Toshiba.
ASUS on the Toshiba power supply stops turning on after some time ...
Please expand.
#9 16989590 26 Jan 2018 10:18

safbot1st safbot1st

Level 43

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Post #9
16989590 26 Jan 2018 10:18

There is nothing to develop ... You have to use original power supplies and that's it.
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#10 16989767 26 Jan 2018 11:48

fuitsu staszek fuitsu staszek

Level 7

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Post #10
16989767 26 Jan 2018 11:48

It cannot be ruled out that this is a power supply problem. After all, the Asus current does not differ from the Toshiba brand current.
#11 17005282 01 Feb 2018 14:52

carrot carrot

Moderator of Cars

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Post #11
17005282 01 Feb 2018 14:52

Dell has an additional pin in its power supplies (plugs), on which there is a signal identifying the power supply, if you connect a weaker than required one, it will block the processor multiplier and will work with a lower clock speed
#12 17034965 13 Feb 2018 19:01

fuitsu staszek fuitsu staszek

Level 7

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Post #12
17034965 13 Feb 2018 19:01

Since the battery has 11V and the laptop is to work, the more so on a 19V power supply.
I tested 2 power supplies and nothing bad is happening.
#13 17038881 15 Feb 2018 12:07

fuitsu staszek fuitsu staszek

Level 7

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Post #13
17038881 15 Feb 2018 12:07

power supply does not matter (not stated)
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Topic summary

The discussion centers around the compatibility and risks of using an ASUS 19V/3.15A power supply with a Fujitsu laptop that requires a 20V/3.25A power supply. Users generally agree that using the lower voltage power supply should not cause damage to the laptop, although it may result in slower charging. Some participants have used similar power supplies without issues, while others caution that using non-original power supplies could lead to complications over time. The conversation also touches on the importance of using original power supplies for optimal performance and reliability.
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