This 2NJNF battery replaces the Dell-Inspiron 14z-5423 and 15z-5523 battery.
There are several Dell models that use the term 14z and 15z in the model name. The 14 or 15 refers to the diagonal size of your display screen. Since most laptop models use a 14 inch or 15 inch screen, you must also find the additional 4 digits that follow the 14z or 15z on the bottom of your laptop chassis. This battery fits within all models designated by 14z 5423 or 15z 5523.
We provide a 30 day money back guarantee if you are not completely satisfied. We are so confident in the quality of our batteries, we will pay for any and all shipping expenses if our product fails to perform in the first 30 days you have our battery, even if it is not our fault.