9NJM1 01D82 44T2R HF250 MG2YH 0546FF 546FF 0HF250 Laptop Battery Replacement for Dell Alienware 15 R3 R4 17 R4 R5 ALW17C-D1738 D1748 D1758 D1848 D2738 D2748 D2758 R1748 P31E001(11.4V 99Wh)

Battery arrived sooner than the given delivery date although it did take a couple of weeks to arrive.It fits my Dell Alienware 15 R4 perfectly to replace the old swollen battery (top tip - don't drop your laptop down a flight of stairs!). Capacity also seems to be on a par if not slightly better than the original I haven't fully tested this yet but HWInfo shows 0% wear, the original showed 12% wear when new from Dell.Edit - the battery has swollen again after just over a year's use, I'm not sure if this indicates a fault with my laptop or the battery itself but I didn't drop it this time!

I went through the process of stripping the entire laptop down, rebuilt it then installed the new battery to find even after many hours of charging reporting as healthy that it doesn't take a charge... What a joke. Now I have to mess about paying up front to return the faulty battery internationally.

Purchased this because it was the highest rated - a touch more expensive than other offerings but when spending the money on a battery you want something that will work! Can’t comment on longevity but it’s replaced my swollen 4 yr old one perfectly

The battery stopped charging after 1 week. Will return! I would give them zero stars.

Good

Better than the original battery I had in my Alienware 17 R4. Right now with lights on and high performance mode I’m showing 6.5 hours of battery life. Not terrible for a gaming computer. Install wasn’t to bad, would recommend. As long as it lasts. Time will tell.

Alienware R4.As strong as the original.

The battery worked fine for 10 months, then suddenly would only operate/hold a charge for 2 minutes. Despite repeated requests for warranty return, as stated in the description, just kept receiving replies to "send pictures" ??Interestingly when running battery diagnostic - returns as healthy. Despite quoting a higher rating, although when weighed came in less than original, can only assume fewer cells and softeare fix to cover.Interested if anybody else's died almost at the point (or just after) warranty expiration.AVOID.