kind of my "train of thought" they are very appealing in the bass boat world merely for the weight savings, huge in performance boating, guys go nuts on weight reductions, the biggest issue i currently have in regard to the options available to us is that for boating applications they are offered in 12, 24, and 36 volt, primarily to accommodate trolling motor voltage requirements, and you'd still need a 12 cranking battery, for cranking the big motor and running all the electronics, it could be another lithium but $till more money, my last 21 ' bass boat i ran 3 group 31 batteries for the trolling motor and one group 27 for everything else, so it is a significant amount of weight 😢 , hence the problems i mentioned in my previous post in regard to ignorance and charging requirements, i could see the "12 volt" being acceptable in most any application but when you have to start mixing/matching chargers the water gets a little muddy, plus most serious bass fisherman demand/like "on-board" chargers for the simplicity when traveling and charging during multi-day events and needing to re-charge "Deep cycle" batteries overnight...i like the idea of a "lighter battery" and the motorcycle with a lighter one makes a bunch of sense, just not sure the cost (current) of lithium over conventional batteries is remotely logical for a truck, they IMO are priced way out of range for the value the bring, once again IMOCould make good sense in a bass or speed boat. Would save 12.8 pounds in my Harley. Plus the CCA would lite it off immediately with a strong bang. Well maybe that would still require a high torque starter I dunno.
But I love a motor that lites immediately with a bang instead a slow lazy crank. Then if I invested in an appropriate charger it might make more sense in the truck. Really in my case if I have 1000 pounds between the bed and receiver I don’t mind the battery weight on the nose.
The only real headache with the LIFP04 batteries is the fact that you cannot charge them when the temperature is below 32F or you can absolutely destroy the battery. RV folks tend to put them in the living space to avoid this problem, since they are completely safe in that application. A vehicle would need some form of heating for sever weather use.An "oldie" brought back. LIFPO4 . Think that is the newest designation of lithium design. They do take a special charger rather than just a lithium charger.