laptop - Replacement AC adapter models: PA 1650 02 and T UV 19 35

08
2014-07
  • NOLA Lady

    I'd like to know whether the one adapter can safely replace the other.

    The original was a LiteOn model: PA-1650-02 Input: 100-240v 1.6A 50-60Hz Output: 19v 3.42A 65w

    Although I thought I was purchasing the same model, I received something different.

    T Power Model: T-UV-19-35 Input: 100-240v 50-60hz 1.0-1.5A Output: 18v-20v 2A-4A

    Is it the sort of thing where close enough works? I'm not sure how these things function and a Google search didn't provide much information. Is anyone knowledgeable? Responses are much appreciated

  • Answers
  • txtechhelp

    Yes it's safe, the power output rating is between 2-4 V (which is in the range of the original) and the Amp's are in the range as well.

    Power adapter ratings explain the amount of power it can HANDLE, not what it gives directly. Your 'input' means the adapter itself takes the 100-240v AC line using 1.5 amps and converts to DC current with a potential to deliver between 18-20V at a rating of 2-4A meaning it can handle a total load of between 36-80 W without delivering more power than is required to the device (probably through some sort of line/noise filters/etc).

    Mind you the quality of the parts in the adapters can make a difference, but generally at the wattage ratings your dealing with you should be ok.

    Always try plugging in the new adapter with the power off first (if you haven't already started using it)


  • Related Question

    dell - In general, do 3rd-party laptop AC adapters / chargers work reliably?
  • MGOwen

    The AC adapters for my 2 dell laptops wore out very quickly.

    One supplies power but won't charge the battery (it's about 3 years old, the other is a bit newer).

    Both have worn through to the shielding around the notebook connector and look like they'll be unusable soon.

    Checking user reviews of the replacement adapter on Dell's own website, it appears they usually fail this fast. Apparently Dell does this deliberately to make money (their adapters sell for about 10-15 times what they cost to make). Same with replacement batteries.

    I can see there are plenty of much cheaper ($50, not $150) compatible AC adapters on eBay. Does anyone have experience with these? Naturally I'm nervous a crappy knock-off could fry my notebook, but has this ever actually happened to anyone recently? Has anyone had a good experience? Can anyone recommend a good online seller (who doesn't charge nonsensical shipping costs to Australia, preferably?)

    .

    Update:
    For anyone who's interested, I eventually went ahead and bought one on eBay from China that was claimed to be a genuine original Dell. It's likely a factory second or very good counterfeit, but it looks genuine and worked fine - charged the battery etc - but only for a year. I've since bought 2 more on ebay because, while one of the three failed in the first year, it's still cheaper to buy 10 of these than to buy one from Dell (and the dell one, I now know, won't last either). Further details here: Dell 1720 laptop replacement battery and power adapter if anyone is interested.


  • Related Answers
  • PaulWaldman

    I don't know what series of Dell notebooks you have but I have had bad experiences. I've purchased a few 3rd party power supplies for Dell Latitude D series notebooks and they will not charge the battery. A warning message appears that the power supply is not Dell approved and subsequently the battery will not be charged.

  • Brettski

    Sounds like you are pretty rough with your equipment. For the most part, yes third party adapters will work fine with your equipment. Even though they adapter manufacture says its for your model, you should closely check the voltage and amperage output of the adapter. Voltage should match exactly and amperage needs to meet or exceed the OEM adapter. Of course this does void any warranties, which probably isn't an issue with the age of the machine.

    The usual difference between OEM and aftermarket adapters is that the after market adapters may not meet the required specs or provide clean power. Dirty power leads to strange behavior of failed devices.

    I guess it really comes down to, how long do you want to keep your notebook. If it will be for a few years or more, go with an OEM. If only for a year, try out the aftermarket.