View Single Post
Old 10-30-2010, 01:59 PM   #43 (permalink)
Master EcoModder
roflwaffle's Avatar
Join Date: Dec 2007
Location: Southern California
Posts: 1,490

Camryaro - '92 Toyota Camry LE V6
90 day: 31.12 mpg (US)

Red - '00 Honda Insight

Prius - '05 Toyota Prius

3 - '18 Tesla Model 3
90 day: 152.47 mpg (US)
Thanks: 349
Thanked 120 Times in 79 Posts
Aren't most most Li chemistries capable of thermal runaway? In terms of lifespan the A2 still had ~20% of the initial charge left on the 350+ mile run, so I imagine the lifecycle figure refers to the number of cycles to 80% capacity.

Originally Posted by NeilBlanchard
They are also saying the batter is 97% efficient, which a bit better than current batteries (which are ~94% as I understand it?).
Aren't most Li batteries are in the high nineties in terms of efficiency? The only exceptions I can think of are cells w/ higher internal resistance and even then that's only at higher discharge rates.

Originally Posted by Old Mechanic View Post
50k@2500 cycles (battery cost-depreciation).
$20 per full cycle (every 375 miles under perfect conditions).
not including the electricity cost.
18.75 cents per mile in battery depreciation.
say 25 cents a mile in electricity and battery depreciation (at least).
they have a very long way to go.

The lifecycle was supposedly ~300k miles, not 50k miles. Where are you getting the cost of the batteries from?
  Reply With Quote