Side release, the 11.6 & 14ah are 10s4p.
11.6 is Sam29e & 14 is Sam 35e, the 29e is the better cell over a longer period of life cycles (700) by about 5%.
The 35e loses about 7.5% capacity after the first 100 cycles & nearly 10% by 300 cycles.
29e loses about 3.5% capacity at 100 cycles & about...