Just got a DSE 905 in the mail today (not sure why, shouldda just got a high v. mod). Annnyhoo, These Chinese batts that came with it aren't marked "protected" and I was wondering if there was a way to tell? They are 5cm long and I can feel an indented ring a couple mm from the pos. end (protective curcuit?). I currently have the first batt charging in the kitchen and I'm about to go into town to Radio Shack to see if they have some Ultrafires or something. Hope the house don't burn down. jk