[jonrick46]

The electric car fails to consider the economic cost of the battery. Batteries used in plug-ins like the Volt and pure EVs like the Leaf are lithium-ion. These lithium batteries experience a gradual drift into senescence as they age. That is, they develop an increasing internal resistance that reduces their charging capacity. No one know how long they will last before they need to be replaced. Cost estimates are between $9,000 and $18,000 to replace. Leaf spokesman say that they can replace individual cells that are under-performing. That may give the battery new life before it completely fails. All that does is add to the cost of the battery’s ultimate replacement. That is why manufacturers are giving full replacement before 100,000 miles. This, of course means the owner has to prove his car needs the new battery. This does not consider the vehicle’s resale value if one wants to sell their electric before the 100,000 miles. That loss of value is another cost added to the initial investment of the car.

[Focault's Pendulum]

These lithium batteries experience a gradual drift into senescence as they age. That is, they develop an increasing internal resistance that reduces their charging capacity. No one know how long they will last before they need to be replaced. Cost estimates are between $9,000 and $18,000 to replace

What no one is revealing is that any rechargeable battery has a memory.

Example:
If you constantly charge your cell phone while it has a half charge on it, And this does take a while) when it eventually runs all the way down, when you charge it to full, it will only have taken a half charge.