Artemus wrote:


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.
There is a cottage industry springing up with guys selling battery
rebuilding services and also the parts and instructions to rebuild
your OWN hybrid batteries for WAYY less than the factory rebuilds.
In many cases you can fix a seriously bad battery by replacing 2
to 5 cells for about $100 - 150. So, when the extended battery warranty
runs out, there are options besides a VERY expensive total replacement.

Jon