I ordered this charger/batteries for my Canon 5Dii.

There are a couple of Chinese camera accessory brands that have really upped the ante. K&F Concept is one of them. I own several items manufactured by K&F, including filters, cages, and adaptor rings. So when I saw this charger/battery kit, it seemed like a good opportunity to replace my aging Canon batteries and charger, I've never liked the fact that my Canon charger only holds one battery.

The K&F kit comes with a dual charger, two batteries, and a USB charging cable. The Canon OEM battery is rated at 2139mAh. The K&F batteries are rated at 2250mAh. The batteries fit securely into the charger. A charge light is provided for each battery and glows red during charging and green once charging is complete.

I have not been able to test the longevity of these batteries as I've not had time to go on a proper shoot with the 5D. Based on my experience with other replacement batteries, I would expect these to offer about 80% of the shooting time of the OEM batteries. Once I've had a chance to put them through their paces, I'll update this review.

There are two reasons why I couldn't give a 5 star review. First, the charger does not offer any information about the state-of-charge of the batteries. The Canon OEM charger, for example, has a blink pattern that changes depending on how close the battery is to being fully charged. Other camera battery chargers I own (I have quite a few cameras that use different batteries from one another) have small displays that show the rate and state of charge. Second, and more critically, the batteries are supplied in thin, throwaway plastic bags, There is no plastic cover to protect the battery against unintentional shorting when tossed into a camera bag.

If you own a Canon that takes the LP-E6 battery, would like to be able to charge two batteries at one, can live with storing your batteries in baggies, the K&F Concept kit is a reasonable choice.