I have posted several times before about this in different sections and got nothing. My truck is not right. Under full throttle the lights flicker and has a loss of power bug time. Thought is was my packs. Replaced with brand new traxxas nimh 3000 mah and same thing. Then replaced the charger. I have an onyx 240 and an onyx 245. Both chargers one of the packit's s while charging where it says nimh is blinking??? Could this be a sign of something??? The other one nimh stays solid while charging? Also when i plug in on of the batteries, seems to be the same lead, it sparks like there is a big draw as soon as i plug it n? Anyone have any guess as to what the heck is going on???? Thought the new charger would fix:-(