Green Car Congress: NREL/GM Project Finds Ultracaps Perform as Well or Better Than NiMH Pack for Energy Storage in Mild Hybrid Vehicle I am no fan of BAS hybrids but have great respect for the potential of ultracapacitors to handle peak power, high amp loads. Bob Wilson
I think one place where ultracapacitor battery packs could be very useful is the type of hybrid used by Mercedes-Benz on the S400 Hybrid. This could allow for less engine operation, improving fuel economy even further.