Cheapo LED Flashlights --- Battery Hogs?

I have those cheapy little ones all over the place. Side pockets and glove box of every vehicle, tool boxes, camera bags, night stands, etc. Cheap enough that it is nice to have them available just about anywhere I reach. The batteries that come with them are cheap, when they burn out replace the batteries and they work fine. Only thing I have ever noticed is that if left to sit for a long time they won't work. Usually not the batteries but the contacts. A quick twist of the top usually solves the problem. Cleaning the contacts will help. I also have several larger Brinkmans for when I need a real flashlight.