NinjaBattPro Battery for HP 800049-001 K104 800050-001 KI04 800010-421 800009-421 15-AB150SA HSTNN-DB6T AB254SA HSTNN-LB6S AB271SA 800049-005 [4 Cells/2600mAh/38Wh]

Excellent does exactly what it should. I have my laptop back!

Battery works perfectly fine

A battery for my HP 255 G5. The original was beginning to fade, I was concerned that it was a 3 cell battery and most replacements, including this one, are 4. Finding a detailed spec for the laptop revealed that it could accept either (the case is the same), HP classify them as HS03 or HS04.This new battery fit perfectly and the laptop was able to identify it and began charging. I was able to use the Windows monitor system to confirm the expected voltage and capacity etc. Note that the battery was supplied in a completely discharged state but after fully charging it indicated 37.5 Watt hours, considerably more than the old original.A test discharge proceeded smoothly, so far so good.

My laptop battery stopped charging and was losing power, despite the laptop being plugged in. I searched what to do online and did a power reset*. The battery started charging again but stopped at 99% and soon started dropping again.*Be aware there's residual power inside the laptop when unplugged and the battery is out, if performing a power reset yourself. If you are in any doubt, ask advice from an expert or pop into your local tech store, especially if you need to remove screws to do it.I searched for a replacement battery and decided to buy this one from reading previous reviews and because it has a higher capacity than my original one, which means I can use the laptop on battery power for a little longer.Note: I found it much easier to find the right battery by searching online using the code I found on the battery itself and not the battery code in System Info, as advice online suggested.The battery arrived in a white box inside Amazon packaging, sufficiently protected by bubble wrap. It fits like a glove (although it took a little more gentle force than I'd anticipated to pop the old battery out and place the new one in) and started working straight away. It was already charged to 88% so I could have used it from the box, but I fully charged it before using it. It's holding charge and working just fine now, a few months on from when I installed it.I'm happy with my purchase and it works great, just like my original battery did from new.

Decent quality good value for money

Works great.

Originally when i got this battery i thought it was too good to be true as it was charging well and giving me more charge than i could ever imagine. I was over the moon.Then after about a month or so. for about 2 days i didn't charge my battery as i wasn't using my laptop during this period of time. Before i knew it i notice that once i accidentally disconnected my charger from the laptop (which was already connected for hours) it instantly turned off! After loads of checks by installing an up to date bios and uninstalling and re-installing the battery drivers in device manager I was still getting the HP error diagnostics shown in the attached picture. and zero % charge on the battery icon display even though charger is connectedI then had to buy another type of HP battery which worked to prove the issue was with the NinjaBatt pro battery. Shocking is an understatement here.Amazon were able to refund me with no further questions, even though it was way after the allowed return date. To the point that Amazon maybe already aware of this type of issue who knows. was glad to get my money back. But also be aware that as it is a battery i had to use a courier service (refund included courier cost) and you have to do this quick as the time they need to receive the item is usually in only a few days once you receive the return labels.I really hope i just got a dodgy battery, but i have a bad feeling it wasn't, hence buyers beware after a few weeks/months.

Great quality, as described and expected!