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<blockquote data-quote="hispls" data-source="post: 8662029" data-attributes="member: 614752">Why headway?  They&#039;re generally pretty poor even for LiFePO4, which IMO is pretty much obsolete already what with LTO technology what it is.Here&#039;s a copypaste of a discussion I had about these with Stephen Mantz.   We were discussing a nominal 9K amp so divide by 2 for the &quot;5K&quot; OrionEnergy is C x V x V in Joules. So you are stuck with 14.4v squared  = 207.36 now multiply this by some cap value. Putting 6 of the 2.7v caps in series drops you to 500F Now assuming 12kW of input power to the amplifier you require 36,000 Joules of energy. So 36,000/207.36 = 173FIn short a bank of supercaps stores enough energy to power 5K amp fully for about 5 seconds and that&#039;s assuming you can get 100% charge (you can&#039;t at 14.4) and 100% discharge at useful voltage (you also can&#039;t).Link I posted is the LTO battery thread which I planned to update today with some new stuff.  I think 5KW amp is already getting beyond the size where AGMs are practical.</blockquote>

[QUOTE="hispls, post: 8662029, member: 614752"] Why headway? They're generally pretty poor even for LiFePO4, which IMO is pretty much obsolete already what with LTO technology what it is. Here's a copypaste of a discussion I had about these with Stephen Mantz. We were discussing a nominal 9K amp so divide by 2 for the "5K" Orion [B]Energy is C x V x V in Joules.[/B] [B]So you are stuck with 14.4v squared = 207.36 now multiply this by some cap value.[/B] [B]Putting 6 of the 2.7v caps in series drops you to 500F[/B] [B]Now assuming 12kW of input power to the amplifier you require 36,000 Joules of energy.[/B] [B]So 36,000/207.36 = 173F[/B] In short a bank of supercaps stores enough energy to power 5K amp fully for about 5 seconds and that's assuming you can get 100% charge (you can't at 14.4) and 100% discharge at useful voltage (you also can't). Link I posted is the LTO battery thread which I planned to update today with some new stuff. I think 5KW amp is already getting beyond the size where AGMs are practical. [/QUOTE]

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