Originally Posted by
TiHabanero
When the foreign governments pull out all the stops and shut down the e-grid and your batteries need a charge, its a no go situation. Meanwhile the luddites that run mechanical, such as myself, will be out on the road. My suggestion is to keep a mechanical machine in the stable at all times, for just such an emergency.
Or charge the battery when it gets to the 50% indicator.
That should keep you going until you install your off-grid solar array.
Also, at worst it is a no-shift situation. A completely discharged Di2 system is a single-speed.