I own several dual chargers for LP-E6 NH batteries. The thing that is lacking on most is the ability to monitor the battery temperature. Most chargers that I have found, single or dual, have only two pins which connect to the battery. They are missing the 3rd and 4th pins which are the com pin and the temperature pin (which is the important one). The exceptions, that I have found, are the original Canon charger (single only) and the Nitecore UCN1 (single) and UCN2 Pro (dual) chargers.
The problem with the Nitecore UCN2 Pro dual charger that I have is that it very often will not indicate that the charging is finished, even after 24 hours. Of course, I don't know if it is still charging, but therein lies the problem...I don't know if it is still charging after 24 hours. Other times, with the same exact batteries, it will charge quickly and indicate that the charging is finished. I just don't trust it. It will report battery temperature while charging though.
The charger that I am currently using is the isdt LP2 Air charger. It doesn't have the T or C pins, so it doesn't monitor temperature. But, it does connect via Bluetooth to your smartphone via an app and it provides a running total of mAh, running charge time, voltage, charging amperage, and battery resistance. It will charge in turbo mode, but I have never used that as it will charge two batteries in less than 2 hours.
I have not tried it with an original Canon battery as I don't have one any longer. Some people report that it has problems with Canon batteries, others say no problem at all.
With my Patona and Newell batteries, I can 100% recommend it.
If the Nitecore would work reliably, it would be my favorite. But, I don't trust it at all.