I have bought four rechargeable 3 volt 123a 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 123a batteries for my flashlight? Or is it the problem of 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? Can you guys help? Thanks.