NinjaBatt Battery for HP V104 756743-001 VI04 ProBook 450 G2 455 G2 440 G2 756478-421 756745-001 756478-851 756478-422 756479-421 Envy 14 15 Series - High Performance [4 Cells/2200mAh]

This battery is perfect. Was a great price and great service too, would highly recommend. Thank yoi

No problems, arrived safely, good fit and no charging or usage problems. Wise choice me thinks.

I have a HP laptop which I have had for years. It still works fine so a shame to throw away. I noticed the battery was running out quickly as it was older. It fits well into the back of the machine as an HP battery. It's good value for money as its a lot less than an "official" HP part. I can't discuss durability as I haven't had it for very long but I was using the laptop for about 2hrs when before it wouldn't last 30 mins without a charge or being plugged into the mains.

battery does the job, replaced the old one and the laptop can keep the charge and work without power for an hour easy

Battery finally died on my HP Notebook after more than 5 years and thought I might struggle to get replacement due to age. Luckily came across this item from Ninjabatt. Reasonable price and prompt delivery. It was just a simple swap for original HP 807957-001 all done in 30 seconds. Early days but all looks good so far

This was purchased to replace the original battery which no longer held any charge at all. I am always very cautious when ordering replacements for things like this, and I like to make sure that it is not going to be something cheap that will end up causing a fire. The laptop was turned off and unplugged before installing the new battery. Once it was all clipped in the power was plugged back in and it was left to charge for a few hours. when turning it on I kept it plugged in, just in case. The battery showed as full so I took the plunge and unplugged the power. It stayed on! The battery was fully charged and I now have a laptop that doesn't need to be connected to the power supply when in used. Overall this is a great battery and I am glad that I took the time to check what I was buying first. I would recommend this to others who are needing to get a replacement battery for their laptop.

Installed and operated no problem.

I am still recharging and discharging not looking good

Buena marca, buena calidad. La duración de la batería es buena. Tras ya casi un año de uso desde la compra, la batería todavía funciona correctamente.

à recommander

Toen ik deze batterij had bestel and binnen kreeg was de batterij maar 7% terwijl normaal gesproken als je een batterij koopt deze tussen de 20% en de 70% moet zijn. Toen ik de batterij 3 uur lang ging opladen was de batterij 90%. Daarna ging mij presentatie van me laptop flink achteruit veel meer dan normaal gesproken niks laden meer in alles was heel traag. De batterij ging maar 2 uurtjes mee. Uiteindelijk heb ik de batterij geretourneerd. Nu ben ik aan het kijken bij een ander merk of de batterij dan wel goed is.

Bra pris

Ich habe meinen alten HP-Laptop wieder flott gemacht, um ihn im Hobbykeller für meine 3D-Druck-Software zu nutzen. Leider war der Originalakku defekt, was ständig zu nervigen Fehlermeldungen führte – und der Laptop lief gefühlt sogar langsamer, obwohl er am Netzteil hing. Der NinjaBatt Akku hat hier echt Abhilfe geschafft: ✔️ Passt perfekt ✔️ Lädt schnell auf ✔️ Hält richtig gut durch Seitdem läuft das Gerät wieder flüssig und störungsfrei. Auch die Preis-Leistung ist top, man merkt sofort die Qualität. Kann den Akku absolut empfehlen – gerade für alle, die einem älteren Gerät noch mal neues Leben einhauchen wollen.