https://smile.amazon.com/Tenergy-LiF.../dp/B01M4P35Z9
That's a little less than $150 for what would basically make a 110Ah, 12.8V pack. That's already cheaper than good quality lead acid. Cheap lead acid can be had for less than that, but wouldn't last as long especially if used a lot.
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To my surprise, shortly after Naomi Wu gave me a bit of fame for making good use of solar power, Allie Moore got really jealous of her...
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