I have a lavatube and a Apollo body and 6 18650 battery's 2 are supposed to be Panasonic and 4 ultra fire, now my Apollo just flashes when I put the battery and my lavatank lasts about half a hour then I have to change it ,is it a fault with my units or my battery's my charger shows that they are fully charged when I use them, I suspect my battery's if it is where can I get a decent battery and what I the best to get
