(481) Are Fuses from AliExpress and Amazon really dangerous? How to test yours!

January 9, 2025 Andreas Spiess

When I saw this video from Louis Rossmann or this one by Tom, a fellow HAM radio operator, I said to myself: Holy shit! I use these car fuses a lot, and I always expected that they protect my circuits from overcurrent and possible burning, but I never checked if they work. Particularly since I started to work with Lithium batteries capable of delivering huge currents and even burning if you are unlucky, the danger increased dramatically. Do I also have bad Chinese stuff? I am sure you want to know the truth, too. So, let’s check out my fuses from AliExpress and Amazon and compare them with the proper ones from Bosch. And I will show you how you can test yours without expensive gear.

My second channel: https://www.youtube.com/HB9BLAWireless

Links:
18650 holder: https://s.click.aliexpress.com/e/_DmRtu4N
3W resistors: https://s.click.aliexpress.com/e/_DEKdUBT
50W/100W resistors: https://s.click.aliexpress.com/e/_DeXVl57
Used fuses:
Amazon: https://amzn.to/3U17JQM
Bosch https://amzn.to/3TGgjmy and https://amzn.to/3UaQDQB
Box from reputable supplier: https://www.mouser.ch/ProductDetail/Littelfuse/00940957XXN?qs=mWYLr2VMNgVlsp9Ny1e5Ww%3D%3D
Links on AliExpress are too old

Louis Rossmann’s video: https://youtu.be/B90_SNNbcoU?si=FCjwZWC8b9j2MVFt
Tom’s video: https://youtu.be/apQU_VuJlFU?si=lxm0SXBmgWBRcV-x
4-wire method video: https://youtu.be/59jTj8k7orU?si=JwYtj6bGdnm2oniZ
Blade fuse datasheet: https://bit.ly/3vLPrtc

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https://passiv-energie.gmbh/
https://www.welectron.com/

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