I've been using these batteries for several weeks now with my Canon R6 Mark II. So far, they've been great. Battery life seems great. Overall, it's great with this camera, so it's hard to make an exact comparison with the original Canon batteries without doing a drain test. But in my use so far, they seem pretty much on par with the Canon ones. Again, when the camera lasts so long on a single battery, it's hard to know for sure.

The charger is what I really like, though. I love that the charger can take two batteries at once and that it can charge via a USB cable. Now I don't have to carry a separate cable or a bulky charger (the standard Canon charger that plugs straight into the wall is bigger and only charges one battery). This one is very portable and easy to use.

It does seem that this charger might be a little bit slower than the Canon charger. I like the charging meters to show charge level, but I've found that they don't always register the battery charge amount. Sometimes I have to put the battery(ies) on, let it charge for a while, take it off for a few moments, and then put it back on for it to show the current charge. I'm not sure what's going on there.

Also, this is a great price for two batteries AND a charger.