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What is generally accepted as the usable capacity of lead acid batteries so they have an acceptable rate of degradation in applications where they are constantly charged/discharged?
For Lithium based batteries, that could be as much as 80% of the rated capacity.
My point is, perhaps lead acid batteries have an overall cheaper cost per rated Ah of capacity, but considering the useful capacity available to avoid premature wear makes it end up costing more, or at least not enough of a savings to warrant the extra weight and volume.
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