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

Works great, fit like factory but higher capacity and lasts all day.

This is a great battery!. Lenovo T480,01AV425 and running HWiNFO program it says its made by Sanyo. What a deal as Sanyo makes most of the best battery cells on a wholesale level. I will buy again for sure if I need a battery. Fit well with great packaging. Thank You!.

Works perfectly so far! No complaints and last about 2-3 times the duration of my normal battery

This is a wonderful replacement for the lower capacity Lenovo external battery. It clicks right in and charges right up. The battery is significantly larger than the original Lenovo battery and has two small rubber feet on it which help tilt the keyboard slightly, which I like. Probably adds some additional weight to the laptop also but since I don't cart mine around, not a big deal. I can't comment on durability yet, just got it this week, but hoping it will last a long time. Price is right, try it.

I've had trouble with some brands not fully latching in place- this one works perfectly in my T480! I believe 72 watt hours is the highest capacity external battery offered for this series. It holds a charge as well as the original did, at a much better price. The plastic texture is not exactly the same as the slightly-rubberized laptop, but it looks and works all the same.