Dolphin Qualisports Folding Electric City Bike 48V 500W 10.5Ah - option for dual battery!

DESCRIPTION UPGRADABLE BATTERY SYSTEMOne 48V 10.5AH lithium-ion battery, one 7AH optional lithium battery, charging time of 4-6 hours, and a range of roughly 80+ miles.The new Dolphin and Dolphin Plus have the same frame design, allowing it to be upgraded to a dual-battery version by purchasing a dual-battery kit. CUSTOMIZED QUALISPORTS MOTORClimb hills and traverse crossroads smoothly and efficiently, powered by our custom 500W motor from Qualisports USA, which is designed in-house to help you go steeper with more load at a lower speed. QUALITY HYDRAULIC BRAKESWith fluid in the master cylinder, hydraulic brakes have a much more efficient braking mechanism to force the brake pads together when the lever is pushed. Multiplying the amount of effort put into the lever makes it easier to brake. MULTIFUNCTIONAL LCD DISPLAYThe LCD display lets you easily see some parameters like battery capacity, current speed, pedal assist level, and travel distance. It has a USB for your ph