I put 14s2p of the A123 into a 1/6th scale scratch build helicopter model. I
bought these as Dewalt batteries from online auctions and cut them apart. These
batteries were brand new and passed the check option on the Dewalt charger
before I tore them apart. After removing the cells from the housings, I cycled
each and every cell and found that the best I could get out of them was 2000
mAh. I charge them with a watt meter and a power supply. You can see pictures of
this set up at:

http://rickosplace.com/Helicopters/Bell%20230/Bell%20230.htm

Scroll down to see the battery and charger setup.



Regards,

Rick



 

-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of Stef
Mientki
Sent: Monday, February 16, 2009 2:32 PM
To: piclist@mit.edu
Subject: Re: [EE] new? electric vehicle battery technology

Peter wrote:
> Maybe I was not clear enough: I have no connection with that auction, but it
is
> the first time I see a LiFePO4 battery on sale like that stand-alone. What are
> these used for normally (besides being excellent for robotics, scooters and
> electric wheelchairs), and has anyone got experience with them ?
>
> Peter
>
>   
http://hackedgadgets.com/2009/01/19/jumpstart-your-car-using-some-a123-batteries
/
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