7XINbox 7.4V 62Wh AA-PBXN8AR Replacement Laptop Battery for Samsung Series 9 900x4 900x46 900x4b-a01de 900x4b-a01fr 900x4b-a02 900x4b-a02us 900x4b-a03 900x4c-a01 900x4c-a04de 900x4d-a01 Np900x4 Np900x

Excellent choice overall with 2 issues.1 - The connector cable was longer that the original but was not a problem.2 - The 2 alignment holes on the bottom edge of the battery were too close together and did not line up with the laptop pins. I used a rat-tail jeweler's file to elongate both holes in the required direction to fix the problem. All the screw holes lined-up.Of note: After installation and power-up, the battery monitor indicated a 90% charge.

Works fine

Perfect fit for my Samsung Series 900X model NP900X4D laptop. The laptop is running Windows 10 Pro version 1909. With a full charge it provides a little over 3 hours of battery life with the battery setting in 'better performance '.Processor is an Intel Core i7-3517 CPU @ 1.90GHz, 2.40GHz with 8 GB of RAM

Installed it today on my laptop, was mostly fine. The only issue I ran into is that the holes on the bottom side of the battery line up with pegs on the laptop. However, this replacement battery holes for the pegs are smaller than my original battery. The smaller holes are the correct size, but it was definitely a bit of a headache to get both of them to line up correct since you had no room for error in placement.Unlike my original which uninstalled/reinstalled prior to this to understand it better and was much easier to do.Ultimately, it did it's job of being a battery and seems to be working just fine.

Replaced the original battery and now the laptop is back in order.Had no problem installing it.

Good output and lasts a lot longer than old battery.

Fit perfectly and I have a full battery again.