ORIGINAL: eroc144
LiFePO4 batteries sound interesting, but 3.6V is too low and 7.2 is too high for my gear. How does one get these batteries into our 4.8 - 6v sweet spot? And what kind of exotic charger would I need?
3.6V per cell is for LiPo and Li-Ion.
One of the benefits of LiFePO4 is that they're only 3.2V per cell (6.4V for a 2-cell pack) which is well within the acceptable range for the vast majority of receivers and servos out there (HS50s excepted I believe).
The 6.2-6.4V of LiFePO4 is *very* good for 2.4GHz systems because it gives you a lot more headroom against low-voltage induced receiver reboots than even a 5-cell NiMH/NiCd pack does.
You should use a LiFePO4 capable charger to charge these cells but most new chargers have settings for these cells now.