I ran 4 kragen HID lights and stock replacements HID out in dumont on the stocker alone, lights (but not the rhino) died in 30 minutes.
The oddesy I ran same setup, lasted for about 45. The oddesy is actually a little smaller than the stocker. But is a much better battery, my understanding is it is designed for charge / discharge more than the stocker, increasing the life of the battery.
You would definately want to run a 2 battery setup for any long rides from camp. Or get an alternator.
And yes, it is the 925.