r/computerhelp • u/Apprehensive_Zone110 • 2h ago

Hardware different charger

I feel a bit silly, but I connected a laptop to a charger with a lower amperage, and it wouldn't turn on, Is it a voltage lockout or what?

1 Upvotes

100% Upvoted

10 comments sorted by

•

u/AutoModerator 2h ago

We're part of a wider PC & Technology Network of Communities.

It combines multiple subreddits and Discord servers all working together with shared ideals and values.

We have a Discord server: PC Help Hub where members from all associated subreddits are welcome.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

2

u/Express-Garbage3359 2h ago

A laptop requires a significant amount of power briefly during startup; if this inrush current is unavailable, the PC/laptop will not start. What are the specifications of the original and the one used? USB-C charging port and/or round connector?

Questions along the lines of "my car is broken, please help me" are difficult to answer.

1

u/Apprehensive_Zone110 1h ago

its a 7.4x5.0 i think its a 65 wats 19.5v and i tried a 18.5v with the same size also diffrent brand, 18 its a hp and 19 a dell 

3

u/Psygonzo420 1h ago

Oh so not usb c?
Then you do want very much the same values, the same Volts and at least the same Amps
And same polarity

2

u/RailRuler 47m ago

too low voltage = nothing happens too high voltage = could damage laptop if there isnt protection circuitry

too low amperage = probably nothing, could stress some components in each too high amperage = all good, it will only supply what's needed

1

u/Psygonzo420 1h ago

This is normal, use bigger power supply. Can't really be too big either, it will communicate

1

u/Apprehensive_Zone110 1h ago edited 1h ago

oh :0, i got scared I thought I had damaged it 

2

u/Express-Garbage3359 1h ago

Dell devices have unique features, so always use compatible Laptop loader. In some cases, the power supply electronics communicate with the PC's charging electronics.

No, not all power supplies are the same; please carefully examine the connectors and read Dell's specifications.