Quote:
Originally Posted by redpoint5
The reason people choose LiFePO4 despite the lower energy density is that a 4s configuration very closely matches the voltage of the lead-acid battery and alternator output of a vehicle. Not only that, but it's more tolerant of the non-managed charge/discharge cycles that the battery would be exposed to.
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This is the other reason I went lithium-iron, and got a 270 amp underdriven alternator internally regulated at 13.8v hot. Ancillary testing by another person with an 18650 iron pack on his car showed that the overcharge current was negligible at the factory alt/ecus 13.8 float voltage, so it all makes sense for me to go that route.