484170-001 484172-001 498482-001 484170-002

Worked great. Charged to 100%.

Quality was good but the laptop had other problems so I couldn't use it. Had to return it

Great battery life, I am quite surprised with the results. I have a great feeling of liberty moving around with my laptop without having to worry about battery life. It was easy to replace and came qith everything needed.

Dell E7440. Installation was simple after removing screws in the back of the laptop and the battery. So far it works, charged overnight and I used it for about and hour and it says 5 hours left. I know that it won't last long but it is already better than the battery I replaced. That one I purchased about year ago and steadily decreased in battery time. I hope this one holds up better. Updated after a couple of weeks, I get about 3 hours which is fine for my purposes. I would purchase again.

Terrible battery. I calibrated it properly. I've done this many times. Simply will not hold charge. It's worse than the 7 year old battery it replaced.

Bought 2 of these for a couple of older laptops whose batteries were completely dead. They work great and seem to hold a charge fairly well. One will only charge to 88%. But it's no big deal. I tend to not leave them off the AC adapter for very long anyway. But for the price that was paid, still not a bad deal.

Good fit and battery life is good

I have several Dell 7290 (8th-gen) laptops, and wanted to upgrade 3 of them to the larger capacity 60Wh type. It turns out that most off-brand (and mostly, but not always cheaper!) batteries that claim to be compatible with this laptop ARE NOT!! Dell laptops verify compatibility with a chip/code residing on the battery, and if it fails validation it will throttle CPU performance. In my case, two other non-OEM batteries I tried throttled CPU performance by 90%(!). BUT THIS ONE (recommended by MSFT Copilot AI) works, and delivers full performance, even when the laptop is set up to run at 100% CPU speed on battery ("aggressive" performance settings). So this is important, that anyone with this type of Dell laptop (maybe others?) will want to be aware of this. Note that this battery still only costs about 25% of the price of the original OEM battery from Dell, or at other parts places that sell original OEM batteries!