Hey Carbon60, and everyone,
Here is a UTube from Australia discussing AGM versus Lithium technoloty. As a battery dolt, I found it pretty interesting. There are a few "but what if's" that come up to me. First of all, Australia is not noted for its frigid winters. Spokane, though not as bad as my home state of Minnesota, still gets its share of snow and cold weather. Also, he doesn't discuss the situation that a lot of us Mission Overlanders find ourselves in. That is battery drain due to camping in one location over a period of days. At any rate, I'd love to have you watch it and give me your feelings about it. My two car batteries are both AGM. The starter battery usually sits at 12.5 V after sitting for a couple of days. It has been that way since new. The accessory battery usually ends up down at 12.1 volts. The beastie is running dual 6 volt lead acid batteries. At home on shore power they show 14.7 v. once disconnected from shore power they rapidly level out at 13.5 v. Each day they drop lower. I'm not sure why because all accesories are turned off. I have been looking keenly at some of the newer lithium batteries that others here have pointed out. But have been hesitant to purchase one or two 12 v versions due to their price. I was thinking of replacing my car's accessory battery with one and the two 6 v batteries in the Beastie. That is $ 2 K !!. What are your thoughts? Have any of you put together a spread sheet showing amp draw based on each accessory installed? What is your typical battery draw when just sitting with nothing running?
