Just found these little gems. These are switching voltage regulators that provide 5v. These are more efficient than the onboard BEC's that ESC's come equipped with and they can accept higher input voltages. These provide 5v at 3amps from 7.2 to 20v input: http://www.ezsbc.com/index.php/products/psu5-25.html#.WC85CLIrKUk These guys do 5v, 5amps from 7.2 to 28v input: http://www.ezsbc.com/index.php/products/psu7.html#.WC86TrIrKUk