Maxwell Ultra-Cap's/Lithium cells hybrid pack

[BrianG]

Originally Posted by zeropointbug

Really? I would have thought that they would do fine as far as current.

Yeah, and it makes sense really. Look at the caps used for car audio. They are only 1-1.5F typical and rated for 20v, and they are huge and heavy. Well, the connections and the internal plates are designed to pass heavy amounts of current. The small caps I was looking at are WAYYYY smaller and lighter even discounting the voltage rating. This is due to the thinner conductors used internally. High burst current was compromised in favor of small size and weight. Makes sense since these are designed for memory backup applications. This datasheet is what I was looking at (page 2, table at the bottom headed by "Standard Ratings").

[zeropointbug]

Well, what are you saying? That a few mA isn't enough to throw around your Jato?
LOL

I really want to try this, it appears so promising for my setup. The A123's cells will last and last, they will run super cool and low discharge; this would allow them to easily reach over 3000 cycles. At 25 degrees, after 1000 cycles at 100% DOD they are still at 95% capacity retention, and they say the internal cell resistance goes down over use!