With a voltage drop like that I'd say the TSA just need to be relearned. Ya get the same thing when you disconnect the battery, the Cruise Control needs resetting too. Nashvegas is 100% correct. Start the bike and go for a ride, do not use the quickshifter while resetting it, you need about 10 seconds in each gear for the TSA to relearn where the gears are. Once you've done all 6, for a minimum of 10 seconds each she should be working.
To get the cruise control working again you have to go through all the inputs 1 after the other with the key on (dash lite up) but not running. Activate each in turn: Front Brake, Rear Brake, roll off the throttle, clutch in and out, CC set button. think that's all. Key off after that and then the cc should be going again too.