NinjaBatt 807956-001 HP Battery for HS04 HS03 807957-001 807611-421 HSTNN-LB6U Notebook 15-AY039WM TPN-I119 G4/G5 240 245 246 250 256 - High Performance

My original HP laptop battery gave up over a year ago so I bought a generic one. That battery drained while the laptop was totally shut down, even after only a few days when shut down with over 50% power left. Since that was unacceptable, I decided to buy this battery -- and it has been working perfectly after following the manual's charging inistructions. Now when the laptop is fully shut down, the battery only loses 1% power. I recommend this battery brand for its functionality and price.

I bought this battery back in november 2024 and it was working perfectly until very recently when my laptop started giving me a cmos error (the latop still works fine, but it just fails to save the time so you have to constantly change it back). This error is usually caused by the main battery (or the cmos battery if your model has one). My product was still under warranty so I contacted customer service and they fulfilled it and sent me a new one (it took like 2 or 3 days). My laptop is working perfectly now!The battery life is good and it doesn’t die fast. Something you have to note however, is that 3rd party batteries usually last 1.5-2 years. You cannot expect it to last longer than that because they are NOT original!! that doesn’t mean they’re low quality, that is just the limitations they have. If you want your battery to last more than that, you should go with an OEM, but they’re gonna be significantly more expensive. Since this is an old laptop I’m not gonna spend so much money on an original one since I’m just trying to extend the life of my laptop a little more.Overall, this is a good product and the customer service was professional and they fulfilled my warranty fast. I would recommend again

It charges fast and it fits perfectly for my laptop. It is new...perfect replacement...I would commend anyone to purchase this product....delivered as described...4 hours use after its fully charged.

Got right one and works, old battery wouldn’t hold charge

Works great, easy to install, and the price point was great. Very happy with my purchase.

This is my 3rd laptop battery. And I have to say, that this one is the best so far. If you are in need of battery replacement and this one will fit your laptop...go for it, and you will not regret your purchase. This battery lasts for a good long time, unlike the others I had.

Great battery, comes in a helpful kit and clear instruction for those who struggle by installing it. A must purchase if anything happen to your battery!!!!!

Fit is very well and it charged quite quickly