Hey guys I recently puchased an L2D Q5 and have just used up my first set of batterys in it and just wondering about its actions when the batterys got low, it didn't seem much dimmer then normal maybe a little, but the switching got very strange, sometimes it would not turn on at all, sometimes it would turn on and immediatly go into strobe mode, if it would turn on in normal mode I could not switch modes, etc...at first I thought the electronics messed up in it, I put in new batterys and everything returned to normal operation, just curious if this is normal, or if I might have a deffective light, I bough a LOD Q4 at the same time and have gone through many batterys with it and it just dims until it dies completly with no abnormal function, all the batterys I used are nearly brand new energizer 2500mah NIMH... thanks