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A comment on DIY Powerwall Builders Are Using Recycled Laptop Batteries to Power Their Homes. Parent comment
https://www.reddit.com/r/AskElectronics/wiki/beginners
tl;dr; do not attempt anything with powerelectricity without safety precautions
ps: there are many electric safety pdf issued from various US states such as https://www.dir.ca.gov/dosh/dosh_publications/Electrical_Saf...
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https://www.reddit.com/r/AskElectronics/wiki/beginners
tl;dr; do not attempt anything with powerelectricity without safety precautions
ps: there are many electric safety pdf issued from various US states such as https://www.dir.ca.gov/dosh/dosh_publications/Electrical_Saf...