M@g61: 2xA123 at 2300maH or 2xK2 at 3200maH?

LEDAdd1ct

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I am very seriously considering turning my battle-scarred 6C into a mini incan torch, my first, in fact. I will definitely be using LiFe cells.

Here is the question for the evening:

Do I use a pair of A123 cells at 2300mAh claimed capacity, or the K2 cells at 3200mAh claimed capacity?

Link to PDF of A123 discharge

Link to PDF of K2 discharge

5761 Physical Specs

5761 Voltage Specs

I want to drive the 5761 for as long as possible, but not if the K2 cells will sag more.

Neither graph has a curve for 5 amps, so it is a guess.

Which would you guys buy, and why?
 
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