Get longer battery life and improved laptop performance with a new Dell KY477 battery.
This Dell Type KY477 battery fits the Latitude E6400 and E6500 laptops as well as the Precision M2400 and M4400 models. Additional compatible laptop models and battery part numbers are listed below. You can find your KY477 part number listed on the bottom of your laptop next to the P/N tag.
We use the highest quality lithium-ion battery cells that charge faster and last longer. We're so confident in our laptop battery quality that we back each one with a 2 year warranty and 30 day return.
This battery is rated 5200 mAh - the highest rating on the market for a 6 cell battery pack. The higher the mAh rating, the longer your battery will run before it needs to be charged again. This battery is still compatible even if your existing battery has a lower mAh rating. It just means this one will last longer than the original!