I tested these batteries on a Canon T6 camera. The charger came with a USB cable, but you’ll have to provide your own USB power supply.
The design and the build quality of the charger is very good. It has a nice little screen showing whether each battery is charging or fully charged. The build quality of the batteries is also very good. They’re very similar to the battery I’m used to using in this camera.
I checked the wattage used by the charger, and it’s the same for one battery as for three, which means it will take longer to charge three batteries than to charge one. Makes sense to me, it’s just something to keep in mind. When I first put the batteries into the camera, it showed that each one was fully charged. But I put the three of them into the charger to top them off, and it took a bit longer than an hour for the charger to fully charge them.
After fully charging them, I tried each battery in the camera for about 100 shots. The camera still indicated full charge, which at least indicates that these batteries are not the kind that take a charge and then discharge in no time at all.
Overall, this is a very good product, providing good value for money. Only thing that would’ve made it better is if an instruction sheet had been included, mostly so we could know we’re using the right kind of USB power supply. As it was, I used one from an unused phone which indicates it’s rated for 1.2 amps. It seemed to do the job, and only got slightly warm, not hot like some of them do.