this post was submitted on 04 Feb 2024
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Why is it dangerous? If the battery can deliver 30W then it’s in spec.
Its dangerous like all the other reasons why not to daisy chain a extension cords.
Please explain why. Do you really think an extension cord works the same way as a USB cable?
Daisy chaining extension chords is dangerous because there is a current limit on them and no fuse. Also, the voltage drops the longer the cable is and thus there might not be enough left at the end to power whatever you’re trying to connect.
All of this doesn’t apply to electronically controlled and fused power supplies.