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Old 05-18-16, 03:12 PM   #47
oil pan 4
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Join Date: Nov 2012
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If my lithium batteries discharge too far one time they are likely finished.
If I charge them while the cell temperatures are below 20°F I lose 20% of their capacity.
If the charge controller shorts out their finished.

If you need more power from lead acid just buy a bigger battery. It will be cheaper than lithium.

I know only about half the amp hours are useable in lead acid.
So what? Now you just have marginally more amp hours than lithium, still for half the price.
Why else did you think I was comparing a 225ah lead to a 100ah lithium.
To me 225ah really means 110ah useable. Then day to day only around 50ah of that 225ah should be used.
With lithium you don't really want to discharge them below 40% or charge them above 90 to 95% day to day.

Still never going to buy lithium for a large stationary install.

Plus Lithium batteries are non recyclable. Lead acid batteries by weight are the most recycled consumer product on earth.
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