TREE.NB Battery Compatible with Dell Latitude E6400 E6410 E6500 E6510 Precision M2400 M4400 M4500,Fits P/N:PT434 KY265 KY265,7800mAh /11.1V /9 Cells High Performance Replacement Laptop Battery

My laptop has NEVER run so long on battery power. This is a very 'energetic' battery - it charges quickly and the charge lasts a very long time. In the past, I had batteries just because the computer needed one. This one I trust to do the job during power failure car trips, etc. I recommend it and it is much more than worth the money.

I did this twice: Played a DVD until charge indicated 2% and charged until computer stopped the chargeAfter both charges computer indicated 100% charge.Charge time remaining indicated as 5hrs 28 min. the first time and 6 hrs. 14 min the second timeTurned computer off 12/8/19 11:00 AM and unplugged charger. Monitored charge as follows shutting down between checks and not plugging in to charger.After 3 days 12/11/19 9:30 AM 93% charge remaining 4 hrs. 0 mins.After 7 days 12/15/19 11:10 AM 88% charge remaining 3 hrs. 46 mins.After 10 days 12/18/19 11:30 AM 83% charge remaining 2 hrs. 38 mins.Seems to be working and holding charge well.

This battery is a tremendous improvement over the one that came with the computer. At full charge it gives me close to four hours of use. I followed the instructions, installed it in the machine and let it go down to 2%, then gave it a full charge. It works great route out of the package! Great value! I would highly recommend it!

Great battery, holds a charge for 3 to 4 hours on my Dell laptop.. When I purchased I thought the battery was bad, it wouldn't take a charge. Being a larger capacity battery I had to purchase a new charger with higher output. My charger would only maintain battery at original battery level of 63%. If you use a docking station as I do sometimes, make sure yours is adjustable if this battery is larger than your original. This battery protrudes about an inch past back of laptop since it has more cells than my original..I knew this was the case when I ordered the battery so I was prepared. Can't beat the price or quality. Excellent purchase, would buy again.Laptop works like it was new again,

Solid battery with impressive battery life even when running on high performance power settings. Comes with a 1 year warranty and they give you an additional year for a 5 star rating.The 5 star on my review is based solely upon their product however. No complaints at all.

This battery is low quality. The instructions say to discharge the battery to 2% then charge to 100%, but after putting the battery in and ensuring it had a charge (starting charge was around 80%) it shut off without warning after 2 minutes. Attempted to charge fully, but it would behave the same once it got down to 90% charge. Both the originally ordered battery and the one I got as a replacement for the first defective one behaved the same way.I am running a Dell Precision M4500 laptop, and the original Dell branded battery, though it only has 45-60 minutes of life, will allow the OS to shut down properly once it gets down to 5% charge, so the laptop is ok.

Under normal use, this battery last about 2.5 years on my Dell E6410.

Bought this to replace the dead original battery on my old Dell laptop that I still use daily. I wanted to leave a positive review, because so many batteries out there are junk. This one is great. Think I've had it for about a year now, will still run my Dell Precision M4400 laptop for over 4 hours, which is excellent. I think that is better than what it did when it was brand new. Of course it depends on what I'm doing with it, but even with intensive CAD programs it holds up very well. Definitely recommend.

Battery came quick, fit right, and lasts long. It is bigger than the original, but not a huge problem for me. Great value for the money up until now.

Perfect fit.

WORKED GREAT

The product arrived in one day. I've only had it for a month, but so far it holds a charge very well, and lasts far longer than the original battery ever did. I'm hoping this continues.The only problem I had with getting started was that the instructions say that, when you first install the battery, you should let it run down to 2%. This took a few hours, and the battery-use reader stopped at 7%. I had to give up there and hope everything worked out. So far, so good. But that's why I gave this 4 stars overall. If I could have, I'd have made it 4-1/2.

Nicely designed to fit well. Increased (over Dell factory) capacity