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by ISL 4771 days ago
High efficiency DC/DC converters are now commonplace. Energy density (J/m^3 and J/kg) and internal resistance are the really important quantities in energy storage capacitors.
1 comments
benjamincburns 4771 days ago
Agreed. I discussed this elsewhere:

https://news.ycombinator.com/item?id=5799723

https://news.ycombinator.com/item?id=5799713

link