What is sweet to me is that LiFePo cells have no safety issues, which makes them suitable for purposes that li-ions are not suitable for.
I can see a USB-rechargable flashlight that has the light output of a 4xAA flashlight but is more compact. Someone care to talk Sofirn into a D4S with 4 LuxeonV’s, USB-charging and this cell, putting out 3000 lumen over the entire discharge of the battery?
Or mod it! Just put XP-L2’s in a D4S and this cell, and watch how high the sustainable output is!!! (assuming that the MCU runs at the lower voltage, and ai, there will be problems with LVP kicking in way too soon)