I bought an 8 pack several months ago and these batteries are absolute garbage. Brand new if you did not use them in a week you would have to recharge them. I have had 3 complete failures so far and I bet it won't be long before the rest fail. I called Duracell and they said they would send me a coupon to replace them. They sent me a $10.00 coupon. I payed double that for them. So when I called again and said that I still wasn't happy, I was told that I ruined the batteries by not using a Duracell charger. I was also told that on the back of the pack of batteries that it stated the warranty was void if you do not use a Duracell charger. Oh well, Duracell sells crap and dosen't stand behind it. I guess I expected more from a company like Duracell.