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Noorulain
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Adapter polarity support for DELL Inspiron 7559

I have a Dell Inspiron 7559 and m looking for a replacement adapter from Dell.It needs a 130W adapter.

Dell sent me an adapter of part number VJCH5. This adapter meets all the needs of compatibility except for its

POLARITY. It has a positive polarity!

The adapter which originally came with the laptop had negative polarity, and was of part number WRHKW.

Now my question is should I plug this adapter of reverse polarity to my laptop?Will it cause any damage?

Because as far as my understanding goes and from what I've read on the internet using a reverse polarity charger could ruin the battery circuit.

If you could list out adapters which are compatible with my Dell 7559 that'd be of additional help!

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10 Replies
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Moderator

RE: Adapter polarity support for DELL Inspiron 7559

Noorulain,


The part number : VJCH5.is compatible.AC adapter with Dell Inspiron 7559. 

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Noorulain
1 Copper

RE: Adapter polarity support for DELL Inspiron 7559

DELL-RAVI CH,

Please can you explain me the POLARITY  issue before making such statement

And

Could you please provide a link to legal documentation which supports your statement.

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8 Krypton

RE: Adapter polarity support for DELL Inspiron 7559

This is  a PA4E adapter, which IS compatible with your system.  It's not clear why you're claiming reverse polarity -- every Dell adapter is positive inside, negative outside.

The only time it becomes an issue is with reversible-polarity generic adapters, or with adapters from other manufacturers' systems -- HP for one, uses reverse polarity on many of its systems.

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Noorulain
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RE: Adapter polarity support for DELL Inspiron 7559

Ejn63,

I've attached a picture of the adapter I received from compuindia, a Dell Express ship affiliate.

According to the information on the adapter , it says it has positive polarity.. Thus the claim.

Please check and revert

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8 Krypton

RE: Adapter polarity support for DELL Inspiron 7559

You need to check with them - "positive polarity" means nothing without the information as to which part of the jack is positive and which is negative.

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Noorulain
1 Copper

RE: Adapter polarity support for DELL Inspiron 7559

I get it. But they won't provide me with such deep technical knowledge, like the pin is negative or the barrel of the jack.

Dell will just say it is compatible, like Mr.Ravi above said.

But I need to be completely sure before plugging it in. I provided you with an image, what do you make of it?

Is it "positive inside, negative outside" as you said in your first reply?

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8 Krypton

RE: Adapter polarity support for DELL Inspiron 7559

Yes, that's exactly what the image shows.

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Noorulain
1 Copper

RE: Adapter polarity support for DELL Inspiron 7559

Okay. I've attached my ORIGINAL ADAPTER's image . This is part WRHKW.Let me know if it's different from VJCH5 in terms of polarity.

What you can help me with is compare both the images and then tell me if I should use VJCH5 WITHOUT CAUSING ANY DAMAGE TO THE LAPTOP.

It's a request.

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8 Krypton

RE: Adapter polarity support for DELL Inspiron 7559

Shows exactly the same thing.  Positive inside, negative outside.

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