Abstract: A portable battery supply includes a liquid impervious housing having a receptacle defining an open top and interior cavity. A top cover is releasably attached to the receptacle for covering the open top, the cover defining an opening. A plurality of batteries are positioned in the interior cavity. A hollow cylindrical member is attached to the top cover and extends a relative distance into the interior cavity, the cylindrical member being accessible through the top cover opening. An auxiliary power receptacle is positioned in the cylindrical member and is electrically connected to the batteries for supplying voltage to electronic devices when plugged into the auxiliary power receptacle. A round power receptacle may be situated in the receptacle and electrically connected to the batteries. An AC/DC adapter connectable to AC power may be electrically connected to a charging unit that is connectable to the round power receptacle for charging the batteries.

Abstract: The present invention is directed to a method for rapidly igniting combustible material over a predetermined area of a field which contemplates positioning a plurality of combustible elements at spaced-apart locations adjacent a first boundary of the predetermined area and extending a line from each element across the field to a position adjacent to a second boundary. Each line and its associated element is then advanced substantially across the predetermined area from the first boundary to the second boundary. The result is a rapid torching or ignition of the combustible material so that a concentrated heat source is provided which gives buoyancy to the smoke thereby lifting same into the upper atmosphere.