I'm using LiFePO4 cells in my P2D/L1D and they work with all modes even if the runtimes are a bit short.
Runtime (turbo) with 500mAh 16340 is 30 mins to 50%.
Runtime (turbo) with 600mAh 14500 is 36 mins to 50%.
Compared to NiMH, the L1D gets a higher turbo mode, but it also gets a higher low...