What would these batteries be like ? 
???
That is a drill battery, if that is your question
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Probably pretty good on a drill…
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They’re probably li ion, but probably not good quality, and it wouldn’t make sense to spend the time or money buying these, just buy a prebuilt or spend more time researching
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Judging by that pic, they’re probably bottom heavy 
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It won’t be 128 volts. Thats for sure. It’s been done with a better quality battery before.
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if my maths is right, you’d need about 35 liion cells in series, and I’ll be fucked if there’s a single cell that’s 10000mah
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4s lifepo = 12,8 V?
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Gotta be 12.8V
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It’d have to be a 35S1P and there’s no way a 10Ah 35S battery could fit in that enclosure. I call bullshit.
It’s Marketing Jive because people buy it when the voltage number is bigger. So they print bigger voltage numbers, regardless of what’s inside. Because that’s what moves shit off the shelf.
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I’m waiting for the 12800 volt version and only then can they take my money!
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I wouldnt risk even touching those 
that many volts to the face would kill
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I usually don’t put that tool to my face, but to each his own. 
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LoLz that would arc through 2cm of plastic to bite your hand and kill you 
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If you can change out the batteries then it might be viable , saw a guy on Facebook who made a pretty clean looking build with two on. I believe he did it for the swap ability factor , let’s see if I can find him.
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Challenge accepted, now show me that tool!!
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In all seriousness though, I’d open up that enclosure to harvest those 3500+ liions and start selling cheap cells on here.
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Cheap cells sell on reddit or that facegram thing. On here, it’s gotta be the real deal
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I’d rebrand them though. AlexTechz ultra firez 50A 10,000mAh
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