Lithium Batteries / charger for Boat

[BearLakeFishGuy]

Here is my take:
1) I've had the NOCO 2 bank charger for at least 9 years.  Works flawlessly.  
2) I don't believe the part about LI batteries burning out a motor.  12V is 12V.  Maybe you can run the motor for longer period since the batteries have more reserve capacity than lead batteries, but it simply cannot "burn out" a motor.  I've used LI batteries on very expensive (and very sensitive) equipment where we used lead batteries in the past.  We've never had an issue with ANYTHING except they LI batteries weigh less and they run longer.  
3)  I have also used LI batteries in VERY cold, extended conditions and have not had an issue with them decharging anymore than lead batteries.