2015 BMW R 1200 RT with Luxury, Comfort, Dynamic, and Touring Packages:

Gear Shift Assist Pro,
Ride Modes Pro,
Dynamic ESA,
Hill Start Control,
Tire Pressure Monitor (TPM),
Navigation V GPS Navigation,
Heated Seats (rider and pillion),
Cruise Control,
Accessory Socket,
Keyless Ride ...

It's been a while since this post was updated. This really sounds like a loose connection at a battery post. Any updates/fixes provided, or has the issue represented?