I hope so, that's where mine is ! One very important thing to note about any dual battery system is to put a fuse at both end of the red wire - right next to the pole of both batteries ! Was talking to one member at greendale that had an under the bonnet fire due to insulation wearing through, shorting and igniting fuel lines - all due to lack of fuses :(
http://www.aulro.com/afvb/attachment...nd-battery.jpg
Redarc SBI12-100amp (or SBI212-200amp if you're going to winch) is a great bit of kit - they're bulletproof and very good value for money. They don't look glamourous but they do the job.
None that I found.