If you put one of those LED replacement bulbs in a 4 cell Maglight, it will still light up really bright even if you do something stupid like putting the last battery in backwards.
If you then leave it sitting for several months until you actually need it, the other three batteries will be drained (the LED does still just barely light up) & the battery that's in backwards will corrode so you can't get the batteries out to change them. By comparison, the other 4 cell that I keep in my car is still working just fine with six month old batteries. Right now I've got it standing on end in the basement with brake cleaner soaking into it so I can see if the tube is salvageable. If I do get them out & manage to ressurect the flashlight, I will make DAMN SURE I put ALL of the batteries in there the right way round. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.