Using old laptop batteries to build homemade powerwalls
279 by jonbaer | 181 comments on Hacker News.
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By Richard Sandomir from NYT World https://ift.tt/Uz2LnmA via IFTTT
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By Robert Chiarito and Mitch Smith from NYT U.S. https://ift.tt/HGo8zwd via IFTTT
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