PowerMore 250 is the additional battery the size of a water bottle for even greater range and longer-lasting trail fun. Compact in size and weighing just 1.5 kilograms, the range extender mounts in place of a bottle cage on standard bottle bosses, and the included cage can hold a standard water bottle when the extender battery is not needed. The PowerMore 250 can be combined with PowerTubes and CompactTubes of the smart system. FEATURES: Determine compatibility with the PowerMore 250 via the eBike Flow app ( Settings > My eBike > eBike pass > eBike Components) or via ebike display, Settings > My eBike: If PowerMore is displayed here, you can retrofit the range extender PowerMore cable sold separately. Correct cable length and orientation depends on OEM Placement Kit comes with PowerMore 250 Battery, PowerMore Holder, 2x M5x12 Screws, PowerMore Bottle Cage