Source of reliable replacement power adapter T520

[lemonstar]

I share an adapter between an old T60 and the T520 - I've had a couple of power blocks stop working and the replacements bought off ebay for £8-£9 don't seem to be lasting very long - less than a year for the last one. There are so many to choose from on ebay - is thee something I should look out for in the spec of a particular buyer I should look for to get something more reliable?

[RealBlackStuff]

Look for the word "genuine" in title/description, and take a good look at pictures.
If seller says it's for a certain model, beware, it's often a knockoff.
T520 can use the same 20V/90W charger as used for earlier models.
Check our Marketforum for a UK/European seller, or place a WTB ad there.