Review on Upgrade Your Laptop'S Battery Life With Dentsing 4-Cell Battery: Compatible With Lenovo ThinkPad X1 Carbon 4Th Gen And X1 Yoga Series by Mark Hobbs

Replaced the original battery in my 4th gen X1 Carbon - it looks very similar to the Lenovo original but contrary to some of the other reviews, mine did not come as an OEM part. I started having problems about a month after installation, but it turned out to be my fault. I reached out to the supplier to see about getting a replacement and they were very quick to respond. Fortunately, I was able to reattach the connector to the motherboard and I haven't had any problems since. After 6 months, I haven't noticed any reduction in power, and I use it 12 hours a day everyday.