Unio E20 Maintenance video | DAHON

DAHON’s Unio E20 is our speedy electric-assist folding bicycle.
For maintenance or troubleshooting tasks that are suitable for carrying out by the user, please refer to this video.
Intro - 0:00
Failure to Boot - 0:22
Fault Codes on the Display - 1:15
Fault Code 4 - 1:19
Fault Code 9 - 1:37
Fault Code 13 - 1:48
Replacing the Battery Pack - 1:54
Fault Code 11 - 2:12
Fault Code 15 - 2:42
Fault Code 2 - 3:11
Fault Code 3 - 3:16
Fault Code 6- 3:20
Fault Code 12 - 3:24
Fault Code 10 - 3:28
Replacing the Motor - 3:34
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[@user-nb5nm4ol8p]

why i can't use custom battery?

[@hikoneno-ossan]

Folding bikes are better than road bikes and cross bikes.