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VIVI FM20UL

The VIVI FM20UL is an electric bike with a 48V 7.8Ah 374.4Wh pack.

Last updated: 23 October 2026

Battery and charging

Battery
48V 7.8Ah 374.4Wh

Row from the maker’s page: “Battery” | “48V 7.8Ah 374.4Wh Lithium-ion Battery”

Source: viviebikes.com/products/vivi-fm20ul-electric-bike-fat-tire-folding-electric-bike

Identity

Model name on the product page
VIVI FM20UL Electric Bike

“VIVI FM20UL Electric Bike 2.4" Fat Tire Folding Electric Bike SGS Certified to UL2849”

Source: viviebikes.com/collections/all-electric-bikes

Model code
AMAK00018

“AMAK00018 (Without rear shock)”

Source: viviebikes.com/products/vivi-electric-bike-battery-for-fm20ul-ebike

Sources

  • VIVI FM20UL Electric Bike 2.4" Fat Tire Folding Electric Bike SGS CertArchived document

    Source: viviebikes.com/products/vivi-fm20ul-electric-bike-fat-tire-folding-electric-bike

    Retrieved October 13, 2026

  • Archived document

    Source: viviebikes.com/products/vivi-electric-bike-battery-for-fm20ul-ebike

    Retrieved October 21, 2026

  • Archived document

    Source: viviebikes.com/collections/all-electric-bikes

    Retrieved October 21, 2026