Shareway 6 Cell Replacement Laptop Battery fit for Lenovo ThinkPad X240 X250 T440 T440s T550 K2450 45N1134 45N1135 [10.8V 58WH]

I gave it a four because it delivered the requirements and what was advertised. It didn't do it exceptionally wrong but it didn't fail either. I would buy another cheapo battery from them again to fix an otherwise dead laptop.

UPDATE: After my less-than-glowing review of the first battery I received, the seller got in touch with me proactively and sent me a new one that seems to work as advertised. I really appreciate them reaching out and conducting business honorably, so I'm amending my review; I would do business with them again.----------------------------------------------------------------------------------------------------------ORIGINAL REVIEW: If you had asked me a month after buying this, I would have said it was great. I paid less than the brand name, and it lengthened my laptop life unplugged.After two months, I started to notice the screen flickering when the battery was below 40%. This had never happened before, and it only happens when this battery is plugged in. My screen looked like a strobe light, and it would come and go at random below that 40% threshold.Now four months on, the flickering can happen at any time and last indefinitely. It also has the neat feature of minimizing program windows at random, making them unusable. Again, this only happens when this battery is plugged in; I have no issues using only the native, built-in battery. This product has become more trouble than it's worth.So in short, I got about a good month's use out of this thing and now it's trash. My advice is to look elsewhere for higher quality craftsmanship

Does not bypass Lenovo warning of original battery, but is a good product

I have a ThinkPad T450s. It is over 6 years old now. Its previous 3-cell battery swollen and died entirely. For this price, I am happy to be able to use my laptop without a chord. As my laptop is working perfectly fine, it would have been a shame if I could not. This 6-cell battery probably has a longer life than the 3-cell one, but I cannot confirm that. All I can confirm is that this battery lasts longer than 6 hours, sometimes up to 8 hours. Hopefully, it will perform like this for at least a few more years.

This battery worked well for the first 6 months or so, I was able to use the laptop for 4+ hrs before recharging. Then the duration started to decline gradually, and now, one year later, it is down to less than 30 minutes.

So far it's working just like the original battery! I have my laptop back!

Worked well enough for the past few months before it started dying on me at 66-90%. Won't even switch over to the internal battery cleanly, you need to remove it to get the internal battery working. It's also slightly loose in the battery slot so it'll jiggle if you move your laptop around a lot.

Received product roughly four months ago. Kept a charge and worked perfectly for about three months, until the battery drained all the way down and sat without charge for roughly two weeks while I was out of town. Now it will not take a charge and the laptop dies immediately when unplugged from power. Very sad as I this seemed like a great find for the price, guess I’ll look elsewhere now.