The Giant EnergyPak range extender boosts your compatible Giant or Liv bike's range dramatically with an additional 250wh of capacity. Weighing only 4 pounds, the bike's handling is minimally affected and makes removal a breeze. Giant's mounting hardware kit is required for installation and allows the battery to be quickly taken on and off the bike. FEATURES: 240 Wh capacity Mounting plate accessory kit needed for installation Charges with primary bike charger USB charging port for additional devices like a phone or tablet Compatible with select giant and Liv models Compatible Giant and Liv Models: 2020-2022 Reign E+ Pro (except medium size) 2020+ Road E+ Pro 2020 FastRoad E+ 2020+ Thrive E+ 2020-2022 Revolt E+ Pro 2021+ Explore E+ (non STA) 2021+ Fathom E+ 2021+ Vall E+ 2021+ Trance E+ 2021+ Intrigue E+