I'm just curious what so many seem to have against battery tenders? I have used them for years with no problems. Of course I don't buy the $9.99 specials. Has anyone actually had a short, fire or ??? I use one in my garage and one in my storage building. Please give some feedback. The Crossfire has such a touchy electrical system and I also set my alarm which drains the battery over time. I assume those that disconnect their batteries do not have a security system?