These are the original batteries so I am not complaining that they won’t charge anymore. The dealer says there is a possibility all batteries may not need to be replaced. If so they quoted $2600 which took my breath away. Questions:
1. Should I replace all even if only some are bad?
2. Is there an upgraded technology from 2012 that I should consider
3. Is swapping out the batteries that complicated? I can get 8 appropriate batteries at Batteries Plus for $265 per battery and save quite a bit…

Thanks from a new member.