Hi. Almost got my c5 all sorted now but last bit Im struggling with. Ive charged up an old leisure battery went 100 yards then the led indicator dropped went down to 1 bar . I took the terminal connector off and it went up to full bars so off I went again .. same story. Tried another battery a 85 amp leisure same story again down to 1 bar then full again when I got back (including a beep on pod) Im totally lost I can understand one being shot but not 2 and to behave like this is very odd - any ideas ?