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That ADV info seems quite biased against lithium and incorrect in many areas. There are no issues with winter starts. They leave lead acid (including AGM) in the dust for amp draw and outlast them in continual draw by at least 10 times the time of draw. Sure lithium will die if you let them get to less than 30% charge but lead acid die if you let them get under about 60% charge. I seem to recall that our stock Yuasa batteries ARE AGM batteries and my Yuasa didn't last a year with my heavy requirements (see my earlier post above). But you'll save 25% approx on a AGM - but you'll get less than half the performance of a lithium battery if you have heavy needs.



Well that thread is 57 pages or so long with real testing and data. While they LIKE Lithium Iron batteries, they also state the deficiencies I think very accurately.
I don't think that particular thread is biased. Base on what I read there, they would love to use a smaller lighter battery, but if you abuse it with lots of gear, and don't charge it regularly you are better off with AGM.

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