Henk4U2
3
Maybe a quick remark before you start some irreversible research?
1/ Assuming it’s the alu Pineapple: rub your hands together for a minute and hold the light tight in your hand.
(if things go as they should, the light expands a little more than the battery).
2/ Do what OutKast sings: shake it, shake it like a Polariod picture (with the opening directed away from you).
If that does not work, resume your autopsy.