Does anybody know if it matters if I use a power supply that has the same voltage but a higher amp rating? My daughters laptop charger has a damaged wire and I have an old one. The original is 19v. 3.42A, and the spare is 19v. 4.74A. I wasn't sure if this would cause a problem charging the battery or if it would just charge quicker:confused: I told her not to tie it in knots:eek: Bloody kids:mad:

Does anybody know if it matters if I use a power supply that has the same voltage but a higher amp rating? My daughters laptop charger has a damaged wire and I have an old one. The original is 19v. 3.42A, and the spare is 19v. 4.74A. I wasn't sure if this would cause a problem charging the battery or if it would just charge quicker:confused: I told her not to tie it in knots:eek: Bloody kids:mad:

Hi Musky

That will be fine, if it was the other way round then I would be concerned

as the new PSU is rated higher the laptop will only draw what it wants !

but would be supprised if it charges the battery any quicker, as it will be regulated.

Radiotwo

Hi Musky,

You are probably thinking a bit in reverse, as the main criteria is the voltage which you say is the same for both units, and the current is dependent on what the laptop draws.

If your daughters laptop was running off of 3.42 amps previously then the unit that you want to use will be fine, as it is capable of delivering 4.74A and is higher rated. The battery of the laptop will not charge any quicker, and conditions of use will remain as before.

I hope that this is helping you.

Regards

Soviet

Sounds like a HP.

Higher one will work fine.

Hi Musky,

by now you surely have seen if it works, but:

I had to get a new laptop charger a few months ago (yes, a damaged wire) and after finding one that was supposed to fit, my computer (an old Dell Inspiron) told me (directly after hitting the "on" button") that it refused to recognise the unit.

It turned out that I had to upgrade the BIOS, then everything worked smoothly.

Hi Musky,

by now you surely have seen if it works, but:

I had to get a new laptop charger a few months ago (yes, a damaged wire) and after finding one that was supposed to fit, my computer (an old Dell Inspiron) told me (directly after hitting the "on" button") that it refused to recognise the unit.

It turned out that I had to upgrade the BIOS, then everything worked smoothly.

Haven't tried it yet as the plug is different:mad: Hopefully I'll not have your problem:eek: Any ideas where to get adapters/new plugs? Not sure what size it is but the only difference is the hole in the centre.

Is the laptop a dell? The tips on the Dells, some HP's and some sony's are unique, and as such most universal supplies don't come with the correct tip. This is to make sure you go back to the manufacturer who screws you a stupid amounf of money for a new one!

Is the laptop a dell? The tips on the Dells, some HP's and some sony's are unique, and as such most universal supplies don't come with the correct tip. This is to make sure you go back to the manufacturer who screws you a stupid amounf of money for a new one!

The broken one is off a Gateway, and the good one is off an Acer

I've been a naughty boy and doing it the other way - using an old PSU to power a newer laptop.

Needless to say, it does get rather warm, but has yet to blow up Maybe one day it will, and if it takes the laptop with it, then I'll get a new lappy

Don't think there are adaptors changing an acer plug into a gateway one. Some chargers have interchangeable plugs and if a well-known bran (e.g. Targus) it should be possible to get the right one.

Otherwise, with patience and a soldering kit ut should be possible to cut off the plugs and splice the wires (just make sure that polarity is right).

Oh well a soldering I'll go then. Thanks for all your help