Qualisport Dolphin dual battery retail $1700
This is  used 143 miles on it
pictures have odometer reading miles on it
Sell $1000
This one has front basket rear rack option
Innova 20x2.3 tires 60psi
 
Size 63*23.6*44.5 inch
Folding Size 33*14.5*28.5 inch
Tire 20*2.3‘’
Frame 6061 Al-alloy mid-step folding
Braking handle Hydraulic disc brake
Gear Shimano 7-speed
Fork Rigid
Max. load 300 lbs
Weight 51.5 / 55.8 lbs (With Battery)
Light: Front and Rear light
Assist Type Cadence 12-magnet
Display LCD-7 with USB port
battery Seat post battery: Samsung Lithium-ion 48V 10.5Ah
Frame battery: Samsung Lithium-ion 48V 7Ah (Dual Battery version)
Motor 500W (750W peak) Rated geared hub
Motor torque 60 N.m
Max. speed 20 mph
Charger 54V 3A fast charger
PAS Range 60-80 miles (PAS)
Charging Time 4～6 Hrs