Initially, I ordered them for my EOS 5D MKII with grip, as in the meantime, I bought a 6D with grip, I have put it, the charger will fault 6D, it does not load, I use that of the 5D MKII. For cons, the chip is recognized by the 6D and 5D. At length, I've used with GPS + Log + some WiFi housing, but as I have not used the battery Canon original and that I have not done enough photos, I can not give an opinion.