On 5/19/19 9:34 AM, Dave Cole wrote:
I do have to wonder though... if these Tesla cells were no longer usable
for a Tesla, why would anyone think they would be good in a stationary
application unless they were derated by quite a bit.
$1200 is far from free.
Dave
My take on this is that Tesla batteries become available from wrecked
vehicles where the car was written off, but not the battery. As far as I
know, a Tesla battery under proper use has not worn out yet. There has
been data on normal-use degradation but this seems to indicate that I
will likely be dead before current batteries are.
There are a lot of surplus Leaf batteries available. My opinion on these
is that these were removed for warranty replacement due to overheating.
These are air cooled and don't do well if they are rapid charged more
than once during long trips. I am tending to avoid these.
The Johnson batteries I have are said to be from an electric bus
conversion study and were liquid cooled and likely well cared for.
So these batteries can come to the market for various reasons but for
simply being worn out doesn't seem to be a common reason yet.
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