90W 20V 4.5A AC Adapter Charger Compatible with Lenovo Thinkpad T60 T61 T400 T410 T420 T430 T500 T510 T520 T530 X60 Z60 X200 X201 X220 X230 X61 L420 L430 Edge 14 15 E420 E430 E530 Power Supply

First, this is a cheap replacement for your old laptop so don't expect it to be quite as good as the OEM. I took this to my bench right away and did some testing to see how this thing faired, and it did just fine much to my relief. My test results over several test were as follows: 1. Volts: 19.8-20.4 (decent range but not not quite as tight as the OEM one I have that outputs 19.9-20.2). 2. Amps: I was able to max it out around 4.38 amps which is shy of the 4.5 amps but not tragically so. 3. Watts: Total watts maximized at 87.654 watts which is perfectly acceptable for a 90 watt item with only a vary small variance. Bottom line: The OEM one I have puts out a solid 90 watts and actually a bit over which is cool, but these are so close to each in spec that they are within a reasonable margin of error of one another so they are essentially the equal for real world purposes. For the price this is great option. As for longevity I imagine they are using cheaper capacitors etc so it won't last as long, but only time will tell. Overall, this was good replacement for me.

Perfect for my very old ThinkPad!

Brought a fifteen year old laptop back to life! I had not been able to use the laptop for more than five years as I could not charge it. I connected the adapter charger and it worked almost instantly. Nothing short of amazing.

all good

It fit, it works, great price!

Perfect replacement

Works fine for my granddaughter’s computer.

Seems to run a little warm up first