ORIGINAL: nute12
get a rechargeable, McDaniel make one that is a twist lock and will last for years, I went through a bunch of thoe springloaded jobs before a bud turned me on to these. I fly 4 stroke and the vibration seam to be a little harder on em. but this one has lasted 3 years with lots of use and still works great. Its a real pain when they start falling off.
is this the one you are talking about???