ok thats one part, second - how do HV's compare to SMH pack over the course of a run? thats what we are discussing. i just used a medium of 5amps as a test to see how they perform and at 5 amps batterys should get too hot of be over worked in anyway for a true test. and i generally charge at 5 amps out of habit. he was disagreeing w/ my findings that a smh pack has more power over the voltage curve, he thinks the HV does.