Well you are one lucky fellow, 2 battery troopers are not an option here in the states, it looks like that is an option available in the UK and you have been fortunate to get it in your purchase. The second battery can be used for many things, inlcuding but not limited to 10 backup purpose 2) vehicle is capable of mainting many adiitional devices ie spotlights, stereo's, LCD screens, refrigerators and so on. As well as the things your dealer mentioned. I woudl use the second attery for the things mentioned above as my trooper goes out into the far far wilderness here in Californiua and it is good to knwo there is a backup battery after a few nights in the bush with the nearest garage or car being two hours away. Frankly I am jealous, and am thinking of doing this mod one day to my trooper.

cheers,

l.