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This is the dumbest take I've read in a long time. From him I've learned which lifepo4 batteries won't burn my house down, proper wiring for stuff, etc. I've go

This is the dumbest take I've read in a long time. From him I've learned which lifepo4 batteries won't burn my house down, proper wiring for stuff, etc. I've got a 144ah battery pack sitting right next to me as I type this I built from learning from him. Are you sure your comment isn't about the youtuber Electricboom?

Syonyk 5y ago
I rebuilt large (500Wh) lithium ebike batteries professionally and shipped them around North America for a couple years, and have torn down more than my fair share of ebike and tool batteries for analysis. I've yet to see a "YouTube Trained" pack build that I would be remotely comfortable leaving unattended in my house. Though LFP is an awful lot more forgiving than a mix of random recycled 18650s of unknown chemistry, service life, and internal damage history that makes up the bulk of that stuff. If you've got some good high res shots of the build process, I'd happily take a look and see what I think of it. My standards of comparison are the professionally built packs I've torn down for analysis and often enough rebuilt for people. As for who my comment is about, honestly, I apply it generally to that entire class of person on YouTube no matter who they are. I know solar, and off grid solar, fairly well (with a focus on flooded lead acid). I know lithium fairly well, having done quite extensive work on them. In areas I know well, most of the people showing stuff off or trying to teach other people hit the 90/10 split, and as this is a topic of conversation in the quiet off grid backwaters circles I frequent, other people usually agree about which 10% is the problem. Therefore I'm happy to ignore that entire class of person and go do something useful. It's not that education can't be funny, it's that when "personality" and "laughs" and "BIG O FACE I NEARLY BLEW MYSELF UP" style thumbnails are what matters, the really deep (and often quite important) technical details get lost in all that.
- belval 5y ago
  I was giving you the benefit of doubt, but this comment shows that you've never watched any of Will's video and you are just painting with a very broad brush. He's the kind of Youtuber that keeps repeating that you should place a low temp sensor on your cells, not the kind doing sketchy spot weld on old 18650s.

Syonyk 5y ago

I rebuilt large (500Wh) lithium ebike batteries professionally and shipped them around North America for a couple years, and have torn down more than my fair share of ebike and tool batteries for analysis. I've yet to see a "YouTube Trained" pack build that I would be remotely comfortable leaving unattended in my house. Though LFP is an awful lot more forgiving than a mix of random recycled 18650s of unknown chemistry, service life, and internal damage history that makes up the bulk of that stuff. If you've got some good high res shots of the build process, I'd happily take a look and see what I think of it. My standards of comparison are the professionally built packs I've torn down for analysis and often enough rebuilt for people. As for who my comment is about, honestly, I apply it generally to that entire class of person on YouTube no matter who they are. I know solar, and off grid solar, fairly well (with a focus on flooded lead acid). I know lithium fairly well, having done quite extensive work on them. In areas I know well, most of the people showing stuff off or trying to teach other people hit the 90/10 split, and as this is a topic of conversation in the quiet off grid backwaters circles I frequent, other people usually agree about which 10% is the problem. Therefore I'm happy to ignore that entire class of person and go do something useful. It's not that education can't be funny, it's that when "personality" and "laughs" and "BIG O FACE I NEARLY BLEW MYSELF UP" style thumbnails are what matters, the really deep (and often quite important) technical details get lost in all that.

belval 5y ago
I was giving you the benefit of doubt, but this comment shows that you've never watched any of Will's video and you are just painting with a very broad brush. He's the kind of Youtuber that keeps repeating that you should place a low temp sensor on your cells, not the kind doing sketchy spot weld on old 18650s.