Review 3 for ThinkPad 170W AC Adapter for W520/W530
It's a paver
Date:April 30, 2012
"It functions well, but from a human factors point of view, it's a brick. The engineering team could do better. Slow the charging to a trickle when running the machine if you have to and make it an optional accessory, but please give us a smaller, lighter power supply alternative to this one."