Your observation was made with no load in circuit? It's an artifact. There may be a good reason based on the circuit design but what matters is how it behaves in use.Hi,
I bought a Li-ion charger some time ago. When I test the output polarity reversed， I thought it maybe a wrong label?
I opened it and found that the label and the internal markers are exactly the same. but the measurement is not. why and why?
Thanks for help
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