Remember when A123 batteries were the up and comers. Almost had same power as lipo's but no fire risk, no drop off, no memory. They were amazing. Look at em now!
http://news.yahoo.com/exclusive-u-gave-a123-nearly-1-million-filed-160159016--finance.html
http://news.yahoo.com/exclusive-u-gave-a123-nearly-1-million-filed-160159016--finance.html