John in CR wrote:I've got a Panasonic battery factory less than 5 min away. I checked with them as soon as I knew anything about Li batts and a couple of times since, but unfortunately the largest Li cells they produce here are the little button size. It's been well over a year, so I guess it's time to check in with the head guy once again.
neptronix wrote:I want ultra high density for 100+ mile rides.
migueralliart wrote:A minute of searching gave me this
nice discharge capabilities! I'm in for a group buy if anyone is interested in starting one.
neptronix wrote:migueralliart wrote:A minute of searching gave me this
These cells will need to be ran at 0.5C or less for best performance and long cell life.
The official Panasonic discharge graph shows a rosier picture. So what is true.. ?
Great for a monster size pack.
But for a monster sized pack, the price adds up very quickly ( based on that eBay price )
$1000 31AH <-- still only good for 31 amps maximum!!
That's around $1000/wHr !! remember that Tesla has said their battery cost is less than half of that? ...
neptronix wrote:Kin; the "high energy" Dow Kokams are better than RC Lipo in terms of energy density, and have a good cycle life like the A123's, but are a little more expensive than these Panasonics per watt-hour
I wonder if anyone bought those on the group buy. Didn't see many people hoppin' over them..
I am sure there is major markup on those Panasonic cells. How else could Tesla deliver a luxury car with 40kWh for $56k? Their price per watt hour is gonna be super low. Boy would a group buy on those be nice. I'd empty my savings for those. I want a >70 mile range pack that fits in the triangle of my bike.
Jason27 wrote:The type of battery your requesting already exists my friend. I could easily do about 80 miles with about 4 lithium manganese packs that could fit in the triangle of my bike.
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