Cause and Treatment of Motor Speed Slow

Reason 1: adjust handle and photosensitive film, photosensitive tube to store dirt

Treatment: clean or replace the photosensitive film to wipe the photosensitive tube

Cause 2: local damage of components in speed control handle

Treatment: replacement of speed control handle

Reason 3: the battery is insufficient, full or unpowered

Treatment methods: refer to the causes and solutions of battery not charging or charging insufficient electricity

Cause 4: foldable electric bike failure

Treatment: replacement of motor

Cause 5: controller failure

Processing method: replacement of the controller

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