[Elecraft] 4-pound Field Day, anyone?

[Michael Babineau]

Wayne et al  :

The closet thing I have seen battery-wise is a brand of LiFePo4 batteries called Anti-Gravity designed as 
replacements for conventional wet-cell motorcycle batteries.  This one is 4.25 X 1.25 X 3.75 inches @ 6Ah 
and weighs in at  1 pound. 

http://antigravitybatteries.com/ag-401/

Cheers

Michael VE3WMB 

P.S. These should be available at a local motorsport shop.