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A piece fallen from DC power jack. I took picture of it below.

frontside of the piece enter image description here

backside of the piece enter image description here

I dont know whether it is fallen from charger adapter port or from laptop charger port.

charger adapter port enter image description here

laptop charger port enter image description here

Can i use charger without this piece? Why we have this piece? Im afraid to using charger without this piece (afraid of short circuit)? Is this piece is for insulation or simply for show?

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    Guarantee that's missing from the charger port. I would avoid using it without. You should take it in for repair.
    – squillman
    Nov 10, 2022 at 18:20
  • It's function it to prevent a short-circuit between shell and center contact in socket. If one is comfortable with microelectronic repairs, it could be put back in the socket with the tiniest drop of cyanoacrylate cement on the flat surface labeled backside. Yes, it might ruin the socket if done incorrectly... Nov 10, 2022 at 19:16
  • Thanks.........
    – itsdevthen
    Nov 11, 2022 at 17:37
  • eBay sells what you need>>>>ebay.com/itm/…
    – Moab
    Nov 11, 2022 at 20:58

1 Answer 1

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It’s from inside the laptop’s port. It’s (sort-of) required because there are at least three contacts between the charger and the laptop: hot (+20V or something like that), ground and data (the charger tells the PC its power rating). On the barrel plug, these are on the outside of the barrel, on the inside and the third is the pin in the middle.

The piece exists to guide the barrel plug inside the laptop’s port and to prevent you from accidentally bending its contacts.

I recommend you get the laptop’s port repaired before charging it again. Because the power port is a low-tech part and Dell laptops are quite serviceable in my experience, this should be a relatively cheap repair.

If you absolutely must charge your laptop before you can get it repaired, you should insert the plug very carefully, centered and perfectly straight. Otherwise, you could bend any of the now-exposed contacts, making charging impossible and possibly causing a short-circuit.

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  • Thanks.........
    – itsdevthen
    Nov 11, 2022 at 17:37

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