To be fully transparent, I received these batteries as part of Amazon Vine, so I did not pay for them. However, I'm still going to give you an honest opinion. When I received them, they went into my Canon charger, and it charged them up with no issues, and they went into my Canon 7D MKII with no issues - I mention this because I have had problems with 3rd party batteries in the past not being recognized and not charging properly in my official Canon charger, and not working with the camera.

So, so far, so good. The batteries charged up fully. I put one in the Canon charger and one connected to a USB-C wall plug. The wall plug one took a bit longer, but eventually the LED turned from red to green indicating a full charge, and I pulled it off. So, on those indicators I have given the batteries 5 stars, and also 5 stars for price because for a 2 pack, that's really not bad at all (less than a single Canon branded battery).

Here's where things might change later - in the past, 3rd party batteries, when they actually worked, had a tendency to not last more than about a year before dying. One actually croaked after about 4 months. So, that means this is going to be a somewhat long term review. In a year or so if they're still going, I'll keep the star rating up there. If they start losing charge or die, then I'll adjust down accordingly. But for now, they seem to work just as well as the OEM Canon battery at a far lower price, so I'm going to keep the rating high.