Quote:
Originally Posted by EG-NRG
As the caps will cover all peaks in load, this will allow me to significantly downsize the Li battery in my design - improving; weight, safety, costs, environmental etc..
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While I don't disagree that they will significantly improve heat, wear and resistance I do not think they will "cover all peaks in load"
A cap is great (even a very large one) at providing instant power for a few seconds. Off the line it would be amazing and then not so much rather quickly.
Beyond a few seconds there are issues, by design a cap sags in a linear fashion to provide power. This means if you build say a 4ahr cap pack (which is very large indeed) and your goal voltage is 144v you would only have .27 ahr available from the cap bank to buffer the battery before it sags to the point that the battery is providing almost all the power anyway. AKA .27ahr = 10v of sag.
I am uncertain if this is you goal or if you plan on lugging around massive amounts of caps