no 8.4 is the same, actual running volts will be fine
they are just deriving the numbers from laboratory optimal conditions of fully charged cells
which would be 4.2 volts plus 4.2 volts = 8.4 volts
but 7.2 is it's more like a discharged cell 3.6 + 3.6 = 7.2
so generally if you see 8.4 or 7.2 and it's 18650 or lithium ion....it's the same thing...
two cells in series...or in a 4 banger 2 parallel/2 series
they are just deriving the numbers from laboratory optimal conditions of fully charged cells
which would be 4.2 volts plus 4.2 volts = 8.4 volts
but 7.2 is it's more like a discharged cell 3.6 + 3.6 = 7.2
so generally if you see 8.4 or 7.2 and it's 18650 or lithium ion....it's the same thing...
two cells in series...or in a 4 banger 2 parallel/2 series
