Emanjor Type 9NJM1 44T2R MG2YH Laptop Battery Replacement for Dell Alienware 17 R4 R5 15 R3 R4 P31E P69F P31E001 P31E002 P69F001 P69F002 HF25D 01D82 546FF 0546FF HF250 0HF250 0MG2YH 99Wh 11.4V 6 Cell

Bought this battery for my Alienware laptop, to replace one that wasn't holding charge. This battery matches the OEM battery exactly and fit perfectly which was a relief. The battery life is great, like a brand new laptop now. Installation was a pain not due to the battery but Alienware design made me remove many parts to get to the battery. The price was right, I wanted OEM battery but took a risk on this which was half off. In Short: It fit great and functions like new.

Good replacement for Alienware laptop. Charged well. Battery life is short but I think that is due to high performance use in this higher end computer. Frankly, I'm just happy it works at all.

Arrived as pictured, and works accordingly.

The battery started to go bad and expand after nine months. This is probably a repackaged used battery that has very little life left compared to an actual new battery.

UPDATE 4/24/2023 back up to 5 🌟 stars Seller responded within 24hrs and shipped a new battery out to me for free. Recieved 2 days later. Photos show the old battery failed via gas production is the battery pack. Googling what causes battery expansion days it is likely that it was likely due to draining the battery too low, overcharging, or overheating. The more I look into it and the more I re-read the seller's installation & maintenance instructions, the more I think the battery failure is my fault. My Alienware 17 R5 uses a 240watt power supply. The BIOS has battery charging set to the fastest setting. I also run applications that are graphically intensive and pull a lot of watts from the battery which in turn means the battery gets hot. I didn't do the deep discharge and recharge cycling every 3 months as they suggested, so that means the Battery Pack's BMS was likely not calibrated correctly. In the end, I don't know enough to know if the battery failed so early because of my powerhouse of a laptop, my negligence, or manufacturing defects. Therefore, I changed my BIOS settings so the battery doesn't charge at such a high C-rating and I boosted cooling off the laptop with a laptop fan base that the laptop rests on. I did four deep discharge & recharge cycles on the battery as soon as I installed this new battery pack (takes 30 minutes to swap out a battery for my laptop). If this 2nd battery fails before 2yrs of use, you best bet I will be back with a detailed update. INITIAL REVIEW 4/15/2023 2 stars🌟 Didn't last. Battery has swollen up and doesn't last more than 20 minutes now. Going to see if seller will help out, otherwise will try a different manufacturer

It fit perfectly. It worked perfectly. If I have any problems I will post an up date.

Got this battery to replace my original battery on my Alienware 17 R4 laptop. Works great. Unfortunely, This laptop requires a great deal of work just to get to the battery, but once there, installation was a snap. Just plug in the battery cable and place the battery in the laptop case.

It came well packed, fits perfectly into the laptop. Doesn't overheat during use or charging. Lasts around 3-3 ½ hours. The price is very good in comparison to OEM. The charge is pretty fast. Was easy to replace, if you no how to open laptops. Let's hope it's lifespan will be at least 3 years. It's very functional to have mobility on your laptop.