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/diy/ - Do It Yourself

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>> No.2512599 [View]
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2512599

I have a few 18650 scavenged from drill battery's and i want to have a way to input/output energy from them. Was looking at one of picrel. But is it just me or wouldn't it be a really big fire hazard to put 21 18650 in parallel without any balancing? Or isn't balancing important in this situation?

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