In my state of complete mental exhaustion I left out the following:
Lithium Polymer -like cobalt, can be very dangerous if mistreated -Very high power density, are popular for RC craft -Energy density can very, typically appears to be less than Cobalt, but still very high -Need a special Li-Po charger -Generally used for applications requiring high power in small battery size. A123 will likely replace them as A123s become more available as they have a higher power density, and are safer -Cycle life similar to that of Cobalt Evercel(Nickel Zinc) -I don't think you can get them anymore, please correct me if I'm wrong and provide a source -Initially looked promising at about 2x the energy density of lead-acid - http://www.electricmotorsport.com used to carry them - http://www.nizn.com/ appears they have just quit "Silicon Batteries" -Similar to traditional lead-acid - http://www.greensavercorp.com/ -Offers numerous advantages when compared to lead-acid, including low temperature performance, ability to sit discharged, and slightly longer cycle life -Included in the E-max, not sure if they still are -Have a different charging voltage and profile than traditional lead-acid -Not sure if anyone could get any, except by buying an E-max. Sources for Li-Po http://www.batteryspace.com http://www.all-battery.com Hope this helps and good luck.
