Can anyone recommend a 80 amp battery that will fit a New Age Sti. The recommeded ones are only 60 amp and I've been told that they're not up to the job, esp as I have gauges, PS13 monitor etc. All the high amp batteries I'v seen are too big to fit in the tray. Dimensions are as follows 220mm long, 170mm wide and 200mm high. There is a little leeway. Alternatively has anyone fitted a 260mm long battery in the existing tray? I'm beginning to struggle for options. Thanks.