29 Sep '16, 11am

Homebrew Powerwall Sitting at 20kWh

Homebrew Powerwall Sitting at 20kWh

Every now and then a hacker gets started on a project and forgets to stop. That’s the impression we get from [HBPowerwall]’s channel anyway. He’s working on adding a huge number of 18650 Lithium cells to his home’s power grid and posting about his adventures along the way. This week he gave us a look at the balancing process he uses to get all of these cells to work well together. Last month he gave a great overview of the installed system . His channel starts off innocently enough. It’s all riding small motor bikes around and having a regular good time. Then he experiments a bit with the light stuff, like a few solar panels on the roof. However, it seems like one day he was watching a news brief about the Powerwall (Tesla’s whole-home battery storage system ) and was like, “hey, I can do that.” After some initial work with the new substance it wasn’t long before he was be...

Full article: http://hackaday.com/2016/09/29/homebrew-powerwall-sitting...

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