This charger from K&F is proof that even a simple object can be improved by adding some interesting features here and there.
The charger is compatible with the two NP-FZ100 & LP-E6 systems from Sony and Canon respectively, and this is already interesting because mixed kits between these two brands are not uncommon.
Inside you can house 4 batteries and possibly mix them 2 with 2 (2 Canon and 2 Sony or 4 of the same type). Next to the batteries there are 4 slots for storing SD or CFexpress type A cards, underlining the usefulness of this product even for simple transport.
The gem of this charger is that in addition to charging, of course, it allows you to use the battery inside it as a source, effectively becoming a powerbank of about 10000mAh with all the batteries inside. And this is a decent piece of genius, which for all intents and purposes make it a wild product for the traveling photographer or videomaker.
On the front there is a display for checking the state of charge of the batteries, perhaps the only part that can be improved by adding a numerical value. But in the end it remains a great product, as always in the K&F house with an excellent quality/price ratio. counselled