[kurzer]

Originally Posted by mans

if each cell can put out 3.6v and 1 amp, then 4 cells in series would be 14.4V and 4A.

this isn´t true, sadly.
P=U*I
3,6V*1A= 3,6W
3,6W*4= 14,4W
14,4W/14,4V=1A

the current in series dosn´t add up. it´s the same with batterie packs.