The battery has a slightly lower performance than the original battery, but it seems to me, a lower self-discharge (this is a purely subjective perception unmeasured). Overall, the performance is very good and I have not regretted the purchase. On the contrary, I have indeed still bought another battery.
The charger is for me the hammer and to now more:
For me, the flexibility was crucial in the terminals, ie I can connect the unit normally at the outlet, which as such is, of course, nothing special, but added the connection to the cigarette lighter and the best of the connection via USB to the computer or course in Automotive if there is a USB port is available. In addition to its compact design, which is especially important when traveling. From the quality and durability I would give this compared to the Nikon-original 4/5 stars, in terms of flexibility 5/5 stars.
Overall, the set gets 5/5 stars because I no ifs and buts, the price / performance ratio can be described as very good here.