Assuming you were an electrical engineer with knowledge of how to work safely with and around such powerful batteries, how would you diagnose a Vectrix battery with suspected problems?
Can we work out a protocol that strikes a reasonable balance between being thorough and being excessively time consuming?
Could we come up with a protocol that can be handed to an electrical workshop along with a sick Vectrix so that they can give a realistic quote for how much it will cost to perform such a task?
It is quite surprising how long a thorough battery analysis takes - easily weeks or even months!
A "quick and dirty" job could get your Vectrix going again in a short time period, but it might miss some marginal cells - and because of the serial arrangement of the Vectrix battery, just a single bad cell is enough to limit the performance of the whole pack severely.
A number of different testing protocols might be needed, ranging from "I'm a dodgy used bike dealer wanting to make a quick buck - how do I get it going again for a few charge cycles" to "I have several complete, but damaged batteries and want to find the best cells in them, to combine them into an excellent battery that could last 80,000km".
Remember: The voltages and currents produced by these batteries can be lethal. You could also cause fires or caustic burns if you treat them very wrongly - so if in any doubt, leave it to someone who has the necessary knowledge, safety training and tools!