Cigarette killed my Server!!!!!

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subliminalurge

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Dec 30, 2011
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And yeah,usb port is not drawn from,it gives power.

That's true of devices that comply to the spec, but it's a simple matter to wire up something to a usb plug that ignores the spec and sucks as much juice as it can. Lots and lots of people fried motherboards back when those USB powered coffee warmers started popping up on the market.
 

Traver

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Well, sure. But that's not the point.

The point is that USB is an established, worldwide standard. People will expect, quite reasonably, that any cord with a USB connector on the end is perfectly safe to plug into any USB port that they have available.

Therefore, standard design principles dictate that if a device draws more power than a standards-conforming USB port can safely deliver, the device should use a different connector.

Not saying passthroughs aren't great, just saying that a device that draws 2 amps has no business using a USB connector. That's 4 times the power that the a USB 2.0 port that adheres to the standard can provide.

IMHO it simply shows laziness and complete disregard for the customer on the part of the product designer.
You are right I never looked at from that point of view.
 

Traver

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Just for clarity, it should be pointed out that a mah is not the same thing as a ma. 900mah is the capacity of your battery. It has nothing to do with how many ma your charger puts out. As long as the charger doesn't draw more (or much more) than 500 ma, you can safely charge ANY size battery off a USB port. Some will just take a very long time.
You have a lot more faith in the quality control by Chinese manufactures of cheap batteries, switches and usb connectors than I have. I would never plug one of these into my computer.
 

NeoLythic

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Wow! First off, I'm so sorry you had to experience that one the hard way!

I'll take a note from your experience though and NOT charge my e-cig on a server (I'm frequently in the server room to...*shudder*)

I've been using the USB adapter with my GreenSmartLiving e-cig on my laptop and desktop at home and have not had any problems.
 
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