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2026. 6. 30. 작업
난이도 & 준비물
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Why do attempts to charge a flat car battery with an electronic battery pack give results as if there's a short circuit?
처리 내용
This battery pack is rated for 4A at 12V. But a really empty car battery can easily draw much more that 5A when connected to 12V, which is definitely too much for your battery pack. The LiPo battery itself can deliver lots of, but not unlimited current. At high currents, it can get really hot and even start a fire. The battery pack contains a protection circuit, which trips if the current exceeds a threshold. (The mains power cable of your house can deliver some 100A, but the cabeling in your house can not handle this - To prevent fires you have circuit breakers tripping at too high currents. The breaker doesn't care whether there's a short circuit or just too many devices connected!) The simple solar panel doesn't have this problem. You can easily short-circuit it, and it will just deliver its maximum current. It's a little confusing that the fuse of your accessory socket blows up. The original use of the socket is a cigarette lighter, and this is typically fused with 10, 15 or someti
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