LeFix Replacement CMOS Battery for DELL Latitude D620 D630 D810 D830 E6420 E6430 E6520 E6530 E6540|Latitude 5480/5490,5470, 7470, 7480/7490, 7280/7290, 7390|N4050 E7270 M4600

My computer suddenly died and wouldn't even properly boot into the BIOS. I was terrified that my computer finally died — it's an older 2017 Inspiron 15 gaming model. I have changed the HDD to an SSD and it's breathed new life into it, but it’s still old and at risk of succumbing to its age.When I looked up the blinking LED that is in front of the computer's base and what the pattern indicated, it turned out to be the CMOS battery failing. I decided it was better than nothing to attempt to replace it and see if that was the real issue.It was. Unfortunately, there was an issue with the BIOS not booting Windows correctly, but that was not because of this battery, but due to the fact that the battery before it had died and ruined the prexisting settings.Installing this battery was a breeze. I had no issues with the process, and the battery fit in the clip my laptop has just fine. I recommend this.

I'll change review if there's anything different over time. I doubt I'll get 13 years like I got out of the original, but whatever; CMOS batteries are just always hit and miss no matter what.On the Latitude E6420 you'll have to trim some of the corners off. Out of clinical paranoia, I'd suggest leaving some of it behind like I did, but there's plenty of room in the location to firmly fit the thing if you cut maybe half of each corner off, which is easy.Piece of cake.

This brought an old friend back to life. Installation took all of fifteen minutes, mabye 30...

Great product, fast shipping, good communication. I will do business with this seller again.

Easy to install if you are comfortable opening a laptop. YouTube has good videos on how to do this, and make sure you have a good mini-screwdriver set before you begin. Would recommend 10/10.

Excelente producto

Does what it needs to do.

I can confirm this cmos battery does NOT work with the Latitude 3570 model. The port sizes are not the same. Hopefully that can save someone some time and money.