I have bought four rechargeable 3 volt 123 batteries for my flashlight. They charged up okay first time but suddenly they have blown the bulb of my flashlight not once but twice. I am not going to use them again but I was just wondering why they flashed and suddenly blew the bulb? What could be wrong with rechargeable 123 batteries for my flashlight? Or is it the problem of the flashlight? Or I am using the wrong voltage batteries? Also one thing that I am curious to know about is that there is 1000mah written on my flash light. What exactly does it mean? Should I get only those batteries which are compatible with this number written on flashlight? I need help with this.