Laptop charger inner pin diameter

kuepper

Bought a replacement charger for Acer aspire f5-571-320g on ebay. It doesn't charge so could be defective but the pin that goes into laptop looked to have a bigger inner diameter than the one I've bought. Unfortunately I'd got rid of the old one so can't compare. Any advice? Was wondering whether to get a universal adapter to prevent repeated trial and error.

[Deleted User]

Hi,

found this:

Genuine Acer Aspire F5-571-320G laptop charger specification:

Tip pin size: 12mm*5.5mm * 1.7mm

(1.7mm is internal diameter of charger connector tip, this can be approx. as can be hard to measure and some may look 1.5mm),

on this site.

Did you buy a genuine one?

Neil_Jones

Most Acer chargers, being a budget brand in the first place, are relatively generic so as a rule anything with the right size pin/voltage/amperage should work.  Not like Dell where the system pees and moans about non-genuine chargers.

kuepper

[Deleted User] said:

Hi,

found this:

Genuine Acer Aspire F5-571-320G laptop charger specification:

Tip pin size: 12mm*5.5mm * 1.7mm

(1.7mm is internal diameter of charger connector tip, this can be approx. as can be hard to measure and some may look 1.5mm),

on this site.

Did you buy a genuine one?

I bought   https://www.ebay.co.uk/itm/192213979968 made by Delta which is mentioned in

 that link. In that link the internal diameter of the pin is the same as I've just bought and I think that's the problem as I'm sure the one I had was about 5mm. The power cable that originally came with my laptop had a 2 hole connection to the charger and the ones in the links have 3 if that makes any difference. Also the amp mentioned on my Acer is 2.7A not that in the links.

grumpycrab

Whether block has 2 or 3 pins going into it isn't significant. As long as charger is rated 2.7A or more that's fine. A universal adapter won't help, unless it has a 5.5mm x 1.7mm tip, but as you've already tried 2 chargers it sounds like there's a problem with the laptop.  I suggest trying a couple of things....1. cmos reset (might be a pin hole underneath) OR  2. removing battery (no idea how easy it is with this laptop) then trying external power.

kuepper

grumpycrab said:

Whether block has 2 or 3 pins going into it isn't significant. As long as charger is rated 2.7A or more that's fine. A universal adapter won't help, unless it has a 5.5mm x 1.7mm tip, but as you've already tried 2 chargers it sounds like there's a problem with the laptop.  I suggest trying a couple of things....1. cmos reset (might be a pin hole underneath) OR  2. removing battery (no idea how easy it is with this laptop) then trying external power.

I've only tried 1 charger, the one I had originally snapped in 2 when I dropped the laptop, it worked fine before that.

a

Neil_Jones said:

Most Acer chargers, being a budget brand in the first place, are relatively generic so as a rule anything with the right size pin/voltage/amperage should work.  Not like Dell where the system pees and moans about non-genuine chargers.

Hp and Lenovo also have issues on newer models too. Worst  of all the Lenovos have not not potected the centre pin and with the wrong adapter or connection, you can end up apply 19v direct to the pch and kills the chip, which makes board useless

kuepper

a said:

Neil_Jones said:

Most Acer chargers, being a budget brand in the first place, are relatively generic so as a rule anything with the right size pin/voltage/amperage should work.  Not like Dell where the system pees and moans about non-genuine chargers.

Hp and Lenovo also have issues on newer models too. Worst  of all the Lenovos have not not potected the centre pin and with the wrong adapter or connection, you can end up apply 19v direct to the pch and kills the chip, which makes board useless

When i connected the new charger the battery still had about 35 minutes charge left. I started using laptop normally (eg restoring full brightness from battery saver mode) in belief charging would be going on in the background but the battery soon drained and laptop or shut down - i think i was shown a message 'locking down' before power went off. Could the  new charger have damaged my laptop? How can i check my laptop just needs charging?

Not sure what to do now, buy another 'Acer' charger to see if that works or try a universal charger from eg Argos, or take it to computer repair place tho there was nothing wrong with laptop before i tried the new charger. Or just buy a new laptop if costs are going to mount up for the one i have, about 5+ yo.

grumpycrab

kuepper said:  ... How can i check my laptop just needs charging?

...take it to computer repair place tho there was nothing wrong with laptop before i tried the new charger. 

kuepper said:...when I dropped the laptop

I wonder if dropping the laptop did more than break the charging plug?  I'd try a local computer shop. If you find one with a good rep, they'll tell you what's wrong with it (or not) for free and quote for repair.

kuepper

grumpycrab said:

kuepper said:  ... How can i check my laptop just needs charging?

...take it to computer repair place tho there was nothing wrong with laptop before i tried the new charger. 

kuepper said:...when I dropped the laptop

I wonder if dropping the laptop did more than break the charging plug?  I'd try a local computer shop. If you find one with a good rep, they'll tell you what's wrong with it (or not) for free and quote for repair.

It worked fine after i dropped it, no problem until the remaining charge got very low and I realised the charger I'd bought wasn't charging it

a

Well, it could be one of two things, (a) you either have got the wrong charger, or (b) dropping it has damaged the laptop. With luck the socket has broke its connection with the board.

To check it, you need a multimeter, and my guess is that you may have to disassemble the laptop.

when you drop things, you usually get away with it - most times. However the bigger heavier components have been known to come loose in some cases like coils and on old laptops cpu's in sockets, memory, plus the large value ceramic smd caps have also been known to internally fracture and short too because the internals are delicate and brittle.