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Old 12-28-2009, 03:26 PM   #1 (permalink)
vpoppv
The $500 Electric Car
 
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Poor man's lithium

Inspired by MetroMPG and a thread elsewhere, I am beginning to think about using Lithium to power E-Sandra. Here's my logic: a Tesla uses 6,831 of the 18650 laptop batteries to go 200 miles (according to some dude, I haven't bothered to check, and 6,798 according to MetroMPG). So, since I need 2 miles, I can use 68 of them, right?
Yes, I'm kidding, but not totally. I mean, I'm certainly not going Tesla speeds and laptop batteries are not crazy expensive: I can get 2 of them NEW (wow, something NEW in my car) for $4. So a decent pack shouldn't be TOO crazy expensive. The biggest drawback will be BMS. Tesla has all kinds of safety stuff I won't have. Then there's charging: I can picture me taking my batteries out every night and hooking up 20 or so power supplies. So my "pack" would need to be taken apart every day for charging......
Any comments appreciated.....

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