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Switching out the six 160Ah AGM’s with Lithium. Why? The AGM’s aren’t holding their charge. They collectively can discharge when new 50% of 160Ah x 6 = 420Ah. That’s 1.2Kw for 4 hours. But as they’re old we get less than half of this, say 210Ah. The charge rate of AGM’s is slow. So most of the 1.6kw...