Hi
This is the same problem I had with the SRC life battery pack.
To solve the problem you have to:
1. remove the shrink-wrap film
2. under that you will find a tube (of 0,75mm of thickness) around the cells
3. remove that tube (as you can see it makes the battery squared and higher)
4. replace the shrink-wrap film you have removed with a new one.
My advice is to position the head with the wires coming out toward the rear of the car because usually on this battery packs it it less thick (and so you will totally avoid to touch the fuel-tank).
Hope to be clear
bye
) run some Charge-Discharge cycles through it. Low amps and not below 3.2-3.3V.