It's that time of year again for me to refresh my batteries, so I'm going to give this set away. I have 5 BP511's, 2 are Canon, the rest are Sterlingtek. They still hold a good charge, but I've had to change them out more than I'd like to last weekend and I'm going to buy a fresh set. They're going to be used 1 last time this weekend, and then I'll send them out to the 1st two people who reply. One person wil get 2 Canon originals, the other will get the 3 sterlingteks. Please specify which ones you want.