[ausev] Trike conversion: Circuit Question.

[jtp]

In the circuit design of this Electric Motorcycle,
 Would it be feasible to have a "Passing Battery"
linked into two DPDT (if they exist) contactors in order to provide more
voltage temporarily if one needed to accelerate and merge into traffic more
safely utilizing another battery such as the momentary use of the Auxiliary
12 volt battery, while isolating the contactors, etc,  with a small sealed
gel, or small array of LI-ION nano-phosphates, for the 10 second boost
stage?
Would the controller  be able to take a surge and pulse as well?
Dan.