I just received the Bloog 102mm battery yesterday 10/4/13 and took it out to try it for about 10 minutes. I put it on the charger for a full 8 hours. It worked very well for about an hour and then started petering out. I was startled, but put it back on the charger for ANOTHER 8 hours and it worked for about 20 minutes! What's wrong with it? Did I do something wrong? I hate sending things back. Was so excited to get this battery because I like the longer ones.