N3X1D Battery 11.1V 65Wh Compatible Dell Latitude E6540 E6440 E5530 E5430 E6520 E6420 Precision M2800 Series 6cell Notebook 8858X T54FJ M5Y0X

Bought this a while ago because I left my laptop out in the cold. Super easy to install, and lasted longer than the laptop itself.

Batería de muy buena calidad

If you let these batteries go uncharged for a week or more they will apparently no longer take a charge. The one that came with a new laptop was dead on first use. This product arrived in three days and I had to use it immediately. It is working well so far. It was charged when I got it. The second battery I ordered is just as good as the first. The first was power spiked by a windows update, down to zero charge. It's still working fine though.

No issues so far. Holds a charge, offers about 2 hrs unplugged.

This is an updated review. I purchased this product in April before some of the reviews were available, saying that it does not work with the Dell E6540, my laptop. I experienced the same bad performance as other reviewers with the first battery that I received, and I wrote a highly critical review of the product. The seller responded immediately with an offer to send me a new battery. I received it in just two days and I am now very satisfied. The battery was fully charged in less than one-half hour and is performing flawlessly. I suspect that my initial battery was defective, but the seller did the very best that she could to solve the problem. I commend her for outstanding customer service and can now recommend the product without reservation.

The battery works fine but I ran into that problem with most Dell computers. They make everything so damn proprietary that the battery isn't recognized by the laptop as an official Dell battery and it wants to reboot or shut down the laptop occasionally. This becomes a problem when you are in the middle of doing something and the laptop shuts down because of the battery not being recognized by the Dell laptop

great product

This battery DOES NOT FIT a Dell Latitude 5401, despite what it says in the description. I will be seeking a return immediately. I only wish I could bill my normal rate of $150 an hour for the removal and reinstallation of my old battery.