SSG Weaknesses:
1) Not a self runner.
2) For reasons unknown, John Bedini says, to not use SSG charged batteries for SSG Running Battery.
3) Not a Over Unity device in classic sense.
SSG Strengths:
1) Easy to build.
2) Can recondition old dead batteries.
3) Gives Batteries more usable output power.
4) Perhaps you can fully charge two or more for one running battery discharge.
5) Fun to watch.
a repost of mine from Bedini_SG@yahoogroups.com;
SSG Performance testing by Sterling D. Allan:
I was looking over the Original School Girl Data at Peswiki.com, for a better understanding of Real SSG Technology. All who have not read the below reports, I think would find many questions well answered, with well documented data. Comments of conversations with John Bedini are most luminous also.
Sterling D. Allan's Replication of John Bedini's Simplified 'School Girl' Motor and Battery Energizer is a great body of work. Unfortunately it confirms many of my suspicions of SSG and its current value in the free energy world. I still think it has a place in the Sun as anyone can build it. Perhaps this is a perfect Solar PV multiplier solution (Running battery on PV charge Working batteries on Bedini SSG charge).
{Data Report for John Bedini's Simplified 'School Girl' Motor and Battery Energizer}
http://peswiki.com/index.php/Directory:Bedini_SG:Data
George King
Made a Bedini radiant oscillator tube from an 2n3055. It can charge batteries from solar at low light conditions
http://www.youtube.com/watch?v=DBbSNKCBaWI (http://www.youtube.com/watch?v=DBbSNKCBaWI)
http://www.youtube.com/watch?v=vaDPnURWi1Y (http://www.youtube.com/watch?v=vaDPnURWi1Y)