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#1
August 18th 07, 10:03 PM
posted to rec.aviation.piloting,rec.aviation.homebuilt,rec.aviation.ultralight,rec.aviation.soaring
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Electrically Powered Ultralight Aircraft
On Aug 11, 9:47 pm, "Bill Daniels" bildan@comcast-dot-net wrote:
... I've already made a cell holder for A123 Systems "A1" cells. That's the lithium phosphate nano cathode one used in 36V DeWalt power tools. You can buy a couple of new DeWalt 36V power packs for $50 or so on Ebay. Then, dismantle the pack to retrieve the individual cells. My pack will be 13.8 volts and 11AH weighing 3 pounds. It will be the same size as a 7AH 12V SLA but weigh less than half as much. Don't forget to add a brick of lead to the bottom of your new battery pack, to keep the CG in the right place ;-) Best Regards, Dave "YO" 
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