I have a Defiant 7000 flashlight and took a look. When the light is closed, the top of the battery door (1) is right at the lip (2) that keeps the light from over extending. I couldn't get mine to close with the cover loose, but if you did you could carefully drill a hole (3) in the outer casing to see and push the battery door back into place. You could also remove the two philips screws under the rotating magnets on the base and maybe push hard enough to force the top out?
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I have a Defiant 7000 flashlight and took a look. When the light is closed, the top of the battery door (1) is right at the lip (2) that keeps the light from over extending. I couldn't get mine to close with the cover loose, but if you did you could carefully drill a hole (3) in the outer casing to see and push the battery door back into place. You could also remove the two philips screws under the rotating magnets on the base and maybe push hard enough to force the top out?