I just received a Multistar 16000maH 6S battery from Hobbyking. It was well packaged and no damage or distortion. Time for some testing.
First, balance charged with a Thunder T610 Balance/Charger.
Discharged at 1.0A to ~ 21.0V.
First picture shows the battery "health" after the discharge. (I intended to stop discharge at 21.0V but T610 I think was going to go all the way down to 3.0V per cell which is too low for me.)
Anyway, note that at 20.62V the capacity of the battery is way over the rated 16,000maH and had quite a ways to go to 3.0V per cell. YOU MEAN THAT THEY WEREN'T ALMOST EMPTY?? SAY IT AIN'T SO!!! Very, very impressive battery IMHO. Note the second picture (Multistar 2)
For me, its a no brainer. Why mess with all of the 18650 battery issues of sorting, bogus retailers and their claimed capacities, fire hazards, to BMS or not to BMS?, charging, etc. For my ebike, simply take two of these Multistar 16000maH 6S batteries in series and presto, easy 48V pack. To charge, use two 24V 6S balance chargers and piece of cake, done. YMMV