That got my attention as I just finished winterizing my Ranger. The idea of a quiet off road vehicle is pretty great.I’m off the grid totally and the lead acid batteries are good for a couple of years, then you can nurse them along for another year. Then you are replacing, in my case, 16 170 pound batteries at a cost of about 5k. Or you can get 8 Lithium batteries around 40 pounds each at a cost of about 20k that have a warranty for 10 years. The Lithium equivalent can be used down to 0% state of charge where the led acid only recommends using 30%-50% of capacity before recharging to 100%. We have an electric Polaris Ranger and those lead batteries lasted about a year and are constantly corroding through wires and require constant maintenance. You’ll be driving and smoke comes up from under the seats from melting lead contacts. To replace them with Lithium batteries is 5-7k.