Gravity, what failed? Was it the old charging fault again? When mine stopped charging, I enquired of TT what the fault was but never received any response from them, just a new dock.
This is very concerning, not only for us as consumers, but also from TT's perspective. I can't imagine that they will continue replacing docks for ever. I was hoping that the reason for docks not being available for purchase as accessories was because they had withdrawn the old dock to replace them with a modified version .... maybe they are just running out of docks having replaced so many of them?
In my case, I am wondering if a case of "reverse emf" had caused the fault. I have my wiring to the dock controlled by a relay that shuts the accessory power off when I turn the key of the bike off ... avoids the flat battery in the morning situation. When the relay opens, a spike of energy is discharged into the wiring from the coil inside the relay, this is referred to as "back emf". I mentioned this to TT as a simple circuit modification to the dock would rectify this (as well as the odd reverse connection of the dock wires I am sure). My relay now has a diode across the coil to overcome the problem there, so hopefully I won't suffer a reoccurrance as you have!!
PC