Revive your battery life and improve laptop performance with a replacement Dell MN631 battery from Laptop Battery Express. We use the highest quality lithium-ion battery cells that charge faster and last longer.
This Dell MN631 battery is compatible with the Latitude E6400 and E6500 series and the Precision M2400 and M4400 laptop models. It is also compatible with the Dell PT434, KY265, 312-0749 and KY477 battery part numbers. Additional compatible laptop models and Dell battery part numbers are listed below. You can find your part number listed on the bottom of your laptop next to the P/N tag.
We're serious about quality. That's why we use the highest quality li-ion battery cells and components. Quality parts can make the difference between a 6 month lifespan or a 4 year lifespan. We're so confident in our laptop battery quality that we back each one with a 2 year warranty and 30 day return.