Battery fuse help

Xaman

1 µW
Joined
May 20, 2024
Messages
3
Location
New Mexico
Hi all,

My daughter just purchased a used 60v scooter, unknown background on the bike. Son in law (220lbs) was test riding today and lost power on a steep hill on pavement. Bike wouldn’t turn on or charge. Took the battery apart and see a blown fuse. I don’t know anything about these thing, but what I see doesn’t look factory at all. Wires soldered to the blades of the fuse. 50a fuse. I think it’s a 20ah battery and 2000w motor, 60v system.

heres what it looks like -


anythoughts? Is a fuse needed? Is this the right size? How would you proceed?

thanks!
 

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It looks like somebody added that fuse aftermarket. Probably a good thing as your son-in-law was going to burn something up, and blowing, as opposed to burning, up a fuse that was being used at over it's voltage rating is also a good thing.
If that battery has a functioning bms you could lose the fuse. Or replace it with something proper. That could be battery or fuse.
It might be time that you charged into Li-ion battery safety, because you don't want to charge that battery, or have it, in someplace you live and/or value.
 
Any brand of the scooter, or picture of it?

Don't know if this is a motorcycle framed scooter, standup, what..
 
I don't see a problem, except... the fuse should've been enclosed in a fuse holder, and electrical tape was a poor idea. OEM or not, the fuse could've easily protected someone's butt (literally), and the bike. If everything seems OK, then simply replace with another 50A fuse and carry a spare.

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