72Wh 61++ 01AV427 01AV425 Battery for Lenovo ThinkPad T480 T470 P51S P52S T570 T580 A485 A475 TP25 Series SB10K97584 SB10K97585 01AV490 01AV492 X50M08812 4X50M08812 01AV422 01AV423 01AV428

Battery came in excellent condition. Excellent packaging too. So far I have had no issues with it and I am enjoying my laptops extended life. I installed it easily by sliding it into the bottom part of my Lenovo Thinkpad T4xx series laptop. High quality battery for a very reasonable price.

Frustrating experience — battery sold as 72 Wh, but the reported design capacity is only 64 Wh. On top of that, the battery only charges up to 57.72 Wh. I returned it and received a replacement, but the second battery had the same issue.

Great product for increased battery life on my computer. Would purchase again

So far it's lasted me almost a year, pretty good for a 3rd party battery.Also, I like the thicker design of it over the stock battery since it elevates the back of the case a little and lets more airflow underneath.

Battery fit perfectly into my Lenovo laptop. Power is fine, however, it appears to need recharging a little sooner than the OEM battery. This is not a major problem, but in my particular case, that is what I have experienced. Have been using it daily for several months. Based on my use, I recommend this battery, as the price is reasonable.

This battery generates a non-compatible error on my T480.And prevents computer from accepting log on credentials.Do not buy, seller will not accept return past 30days.

If you want a battery for older Thinkpads this thing works the problem is with the capacity! The designed watt hour and the full charged watt hour is different , means a lot of things but likely this battery is aged or it’s a recycled one so it’s a used one technically speaking , one unit I got says 71 watt hour by design but I got a 56.72 watt hour when full! So this battery is technically speaking a dying one!To make things short save your money and buy original if you can get one , other wise use Anker power banks externally if you want mobility like I do!At least you get a use of the power banks energy wise than buying a dead reused batteries!!Don’t get ripped off!

I used this to replace the original external battery (battery 2) on my Lenovo Thinkpad T480. The original interal battery was replaced about 6 months ago, and the external one still said the health was good at the time. However, it recently began a rapid decline and then would no longer hold a charge, at times preventing the laptop from charging the internal battery as a result. This arrived just over 70% charged, which is what they should be, and was immediately recognized and began charging after inserted. So far, so good, the performance is wha should be expected from an extended battery, and coupled with the internal battery I now have approximately 100Wh of battery to work with, more than enough to last all day without access to a charger. For the price, I consider it a great deal.