Ultracapacitors and Batteries: Mortal Enemies or Best of Friends?

This is what is happening with ultracapacitors and batteries today. Batteries are being designed in where only ultracapacitors are needed. In contrast, ultracapacitors are being used where batteries just won’t do. Fortunately, there are some very progressive thinkers out there who recognize that energy delivery systems usually have more than one job to do and using the combination of the two is the best choice for the job.