"Keith W" wrote in message
...
Ed Huntress wrote:
On Fri, 22 Mar 2013 16:57:55 -0000, "Keith W"
wrote:

The Tesla Roadster has 6,831 lithium-ion cells, and each one is
between the size of a AA and a C in diameter, but a little longer
than
either.

An AA is 14.5 mm x 50.5 mm. The 18650 Form Factor cells used in the
Tesla are 18.6 mm x 65.2 mm.

And a Tesla battery costs between $24,000 and $40,000.

The Toyota list price for the Prius battery is $2,299 but
aftermarket
battery costs start around $1,800

Keith

This is a typical price if you want a few to experiment:
http://www.amazon.com/Ultrafire-1865.../dp/B006QQ27BW
A voltage-and-current controlled lab power supply will recharge them
nicely. My 18650 battery holder is a small plastic box with brass
screws threaded into the ends as adjustable terminals
jsw