It would be good to know what the protections are that built into the ReStart batteries.
Lithium batteries are definitely the future but most of us have been holding fire on them until such time as they are as reliable and safe to install in an older machine as lead acid. If your ReStart batteries have indeed reached that stage, then you could be getting a flood of orders...
So the quick summary is that you have over discharge, over charge, as well as thermal protections built in. To elaborate a little, the BMS(Battery management system) built into the battery will put it into a sleep mode if any of these conditions outside of normal operating parameters exist. For example, let's say you leave an accessory running, key in the ignition or something that would typically be causing the battery to get drained and eventually over discharged, The battery shuts itself off to prevent this from happening and at the same time does it at a point where you still have enough reserve to be able to stat the bike at least a few times at the touch of a button.
For those interested check out the vendor thread for the special on Ducati batteries going on right now.