Advantages of a 130W vs 90W ac adapter?

Posted by David on Super User See other posts from Super User or by David
Published on 2012-09-19T20:12:09Z Indexed on 2012/09/19 21:40 UTC
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I purchased a Lenovo T420S laptop with a 90W/20V AC adapter P/N 42t4426 through my IT department. Subsequently, I ordered a replacement adapter and received a 135W/20V AC adapter P/N 45N0054.

The 135W version is about twice as big and heavy as the 90W version.

  • Is there an advantage to the 135W version like faster battery recharging?
  • Are there any negative effects (other than weight), like reduced battery life?

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