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HP, Compaq  (10)

Help zone

Laptop power supply - what voltage?

When choosing a new power supply for your laptop, you should check the voltage of the charger - this parameter should match your original device.


When choosing a new power supply for your laptop, you should check the voltage of the charger -...

Is it allowed to connect a power supply with higher amperage?

Definitely yes. Please do not forget, however, that the output voltage [V] must be the same as in the original power supply.


Definitely yes. Please do not forget, however, that the output voltage [V] must be the same as in...

Is it possible to connect a weaker power supply to the laptop?

Using an AC adapter with a lower amperage than the original can cause a number of adverse changes in the operation of your laptop. For example, a power supply that is too weak can overheat because the laptop's components are not being supplied with sufficient power. We therefore recommend that you use chargers with the same or higher amperage.


Using an AC adapter with a lower amperage than the original can cause a number of adverse changes...
Charger / AC Adapter RDY 18.5V 3.5A 65W for HP Pavilion DV2000 DV6000 DV8000 Compaq 6730b 6735b nc6120 nc6220 nx6110
Charger / AC Adapter RDY 18.5V 3.5A 65W for HP 250 G1 255 G1 ProBook 450 G2 455 G2 Compaq Presario CQ56 CQ57 CQ58
Charger / AC Adapter RDY 19V 4.74A 90W for HP Pavilion DV5 DV6 DV7 G6 G7 ProBook 430 G1 G2 450 G1 650 G1
RDY Charger / AC Adapter for Laptop Toshiba Satellite A100 A200 A300 L300 L40 L100 M600 M601 M602 M600
Charger / AC Adapter RDY 19.5V 3.33A 65W for HP Pavilion 15-B 15-B020EW 15-B020SW 15-B050SW 15-B110SW HP Envy 4 6
Charger / AC Adapter RDY 19.5V 3.33A 65W for HP 250 G2 G3 G4 G5 15-R 15-R100NW 15-R101NW 15-R104NW 15-R233NW 15-R253N
Charger / AC Adapter RDY 19.5V 4.62A 90W for HP 250 G2 ProBook 650 G2 G3 Pavilion 15-N 15-N025SW 15-N065SW 15-N070SW
Charger / AC Adapter RDY 19.5V 2.31A 45W for HP 250 G2 G3 G4 G5 255 G2 G3 G4 G5, HP ProBook 450 G3 G4 650 G2 G3
Charger / AC Adapter RDY 19V 4.74A 90W for HP Pavilion DV6500 DV6700 DV9000 DV9500 Compaq 6720s 6730b 6820s
Charger / AC Adapter RDY 19V 6.3A 120W for Asus G56 G60 K73 K73S K73SD K73SV F750 X750 MSI GE70 GT780
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Showing 1 - 10 of 10 items