After just 2 years and very few charging cycles of the original battery of my HP notebook has failed. For me it was clear because of this experience that there is no original spare part is used. This low level of quality is also able to offer a Chinese replica part. I bought at the company. ZBT International Trading GmbH. Was delivered on 2nd working day after ordering. The packaging was exemplary and was (from the inside out) from: 1. a plastic bag 2. Foam 3. a sturdy box A manual was not the part. The spare parts fit very well in the original recording of the notebook and could be installed without any problems. I have decided to invite the apparently dead battery before use. This was done with the original charger and worked without any problems. The runtime with little power-hungry applications (Internet access via WLAN and displaying stored on the hard disk photos) is almost 3 hours. This has never made the original battery. Let's hope it stays the next 2 years so. Until then, from me it 5 *.