TREE.NB AC Doctor INC Generic 5200mAh Battery for Dell Latitude E6400 E6410 E6500 E6510 Precision M2400 M4400 M4500 M6500 Laptop Battry Replacement 4M529 KY265 PT434 312-0749

Product work fine for me. Fair price for what you get.

Experience uninterrupted productivity and reliability with the TREE.NB AC Doctor INC 5200mAh Battery designed for the Dell Latitude E6400. This battery is a testament to innovation and quality craftsmanship, offering a seamless solution to power your laptop through long hours of work or play. With its generous 5200mAh capacity, you can trust in extended runtime and dependable performance, allowing you to tackle tasks with confidence and ease. The compatibility with the Dell Latitude E6400 ensures a perfect fit and hassle-free installation, while the durable construction guarantees longevity and resilience. Say goodbye to interruptions and hello to seamless computing with the TREE.NB AC Doctor INC 5200mAh Battery—a must-have accessory for anyone seeking reliable power on the go.

Strong

My laptop was not taking a charge and randomly shutting off even when plugged in. I bought this. Popped it in. The old laptop is humming away like nothing ever happened.

I bought this battery for my e6510 laptop awhile ago and it’s been a solid performer. Wife has same laptop and her battery finally started showing it’s age. So since mine worked out so well and since I use mine quite heavily and it held up, it was a no brained to order the same battery again. These are excellent replacements for our Dell E6510’s and I’m sure they fit others as well. Good performance, great price and an excellent value shipped quick!

Arrived in three or four days, easy to install. Battery was charged to 73% and directions say to discharge to 2% before first charge. I didn't read the directions before charging. After fully charging I ran the battery down to 25% which took around 1hour and 45 minutes. It took around 20-25 minutes to charge back up to 100%. It is as good as the battery that came with the laptop originally and I'm very satisfied at this point. Time will tell if that lasts.

I bought this as a backup battery for my laptop. I rarely use the laptop and when i store it in my computer bag i remove the batteries first and the bag is hung from a hook on the wall so i've ruled out anything other than just a defective battery. I charged it up to full capacity once. It sort of travelled with me maybe 4-5 times but wasn't used because I have a high capacity battery as my main one. Well it just so happened that I needed it and i plugged it into my laptop and about an hour later my yellow battery light was flashing and it no longer takes a charge. I don't know how this happens but i wish i wouldnt have spent money on it. I don't know if maybe it got really hot in shipping(i'm in AZ) and maybe that caused a defect or if it came like it from its manufacturer but either way...not thrilled

It's a battery for a laptop that no one makes batteries for anymore...you know the story from here. Most are just "refurbished"(whatever that means) and get nowhere near the original battery's capacity. If you've got an older laptop and still want some portability, buy a couple of these.

I do not recommend buying this battery unless you plan on buying multiple for the same laptop. I bought this battery back in March 2022. I use my laptop on a regular basis (3-5 times a week) as a work platform. The main use is writing Excel sheets and typing reports. I don't get much more than an hour out of a full charge on battery saving mode. The laptop is using less power than before as the HDD has been swapped with an SSD which uses much less power, and produces almost no heat, so the laptop fan is barely ever on. I have ensured that it is fully charged when not in use. While I've been typing this review, the battery charge, in battery saving mode, has already dropped from 92% to 86% in a matter of <5 minutes. I wonder how these batteries would operate on the same laptop with stock configuration? Probably worse than this.

ce n'est pas l'originale de DEll mais elle fonctionne bien, je ne sais pas combien elle va durer

Doesn't hold a charge longer than 1 hour.

Just as advertised to replace my factory laptop battery

Even though this was suppose to fit my laptop model i was happy that it did and it charged up quickly My original battery lasted a long time so will be interested to see how long this one does.