Lenovo L440 L450 L540 T450 T450S E431 E455 E570 Laptop Charger AC Adapter Power Supply Cord

I was on a business trip and forgot my laptop charger. I called every local store in the area and nobody had this power adapter. Nobody. I knew Amazon would and thanks to one day shipping I was able to full power for my presentation. Works like a charm and exactly like the one I had left at home (that came with the laptop).

Works perfectly-- so happy to get this and not have to depend on the overly expensive ($80) multi headed plug assembly that my local computer store tried to talk me into as they don't carry this.

I bought two of these for my Lenovo X1 carbon. When I plugged it in the charge light on the side of my laptop was lit green, but the charge icon on screen doesn't show that it is charging. After waiting a good long while, the percent of charge on screen didn't change. I have two other known-good power adapters (from Lenovo) and they work fine. I tested the output voltage on both units and it tested the same as a known-good power adapter, so I am guessing either the wave-form or connector or something else is wrong. I don't think it is a defect; my suspicion is that the electronics aren't doing something right and the manufacturer's tests and inspection are missing it. I called the manufacturer per the instructions on their packaging ie: "if you are not satisfied with the quality of our product please call us before leaving a rating", and they promised to ship out two replacements immediately. Unfortunately it was all talk and I never received the replacements. Now I am outside of Amazon's return policy window.

I am looking for a smaller adapter to fit in a smaller backpack. Would love to find something similar to the flat Dell adapter.

Works fine with my X1 Carbon. It looks like a genuine Lenovo product, but it differs from the factory supplied X1 Carbon power supply in that it has a 3-prong plug. Why the part numbers match but there is a physical difference, I do not know, but it makes me wonder if there are other less apparent differences. At a minimum this 3-prong version is slightly more bulky, which might be a consideration for travel purposes.

Adapter works perfectly; saved me making it able to continue to work on my laptop in a town where it was otherwise impossible to find a charger for my Lenovo ThinkPad.

Came frayed and shorted after a few months.

It came with everything I needed even the wall plug. Works great .showed up on time too!! it help me a lot . Can't complain. It's doing what they said it would.