"Jim Wilkins" wrote in message
...

....
Much more significant is the cost of the battery divided by its capacity times
cycle life, to give dollars per KWH. With lead-acids, solar power doesn't break
even for me if the panels are free.
jsw

That is a major factor that the mfgrs, media, politicians, and greenie weenies
seem to be ignoring.

According to
http://www.gavinshoebridge.com/elect...eir-lifespans/

Avg battery lifespan in electric vehicle applications
Normal Car Starting Batteries: 3-12 months
Marine Batteries: 1-6 years
Golf Cart Batteries: 2-7 years
AGM Deep Cycle: 4-7 years
Gelled Deep Cycle: 2-5 years
Ni-Cad Batteries: 1-20 years
Ni-MH Batteries: 2-10 years
LiFePO4 Batteries: 6-10 years

Nissan's cost for their Leaf elec car battery is $15,600 and this is not expected to
come down.
http://online.wsj.com/article/SB1000...934528502.html
So people like me who keep their cars for longer than this (I've had my Toyota PU for
28 years and the Ford Explorer for 19) would have this major replacement cost to look
forward to again and again.
Art