eZuma Stage 1
OwnerMichael Sullivan
LocationBoston, Massachusetts United States map
Vehicle2017 Jiangsu BAODIAO TDSDB576Z
Chinese 2000W SLA-powered eScooter

(a clone, loosely based on Yamaha Zuma/BWs)
Motor (original) QSmotor V1 2000W 12 Brushless DC
Drivetrain(upgraded) QSmotor V4 8000W 13" hub motor

(a big upgrade from the original QS 2000W V1 hub
as shipped with the bike)
Controller PowerVelocity 20kW/200A
Pure sine wave controller with Bluetooth app.


Programmed to limit to 83A (battery) & 230A
(phase) amps.
Batteries340 LG 3400 18650 cells, 3.60 Volt, Lithium-Ion
Custom 20s17p 57Ah lithium battery pack
System Voltage72 Volts
cheap Chinese 5A charger as shipped with the
DC/DC Converter
cheap Chinese 10A DC-DC converter as shipped
with the bike
InstrumentationAll functions via PowerVelocity iPhone app
Top Speed60 MPH (96 KPH)
(estimated, not yet verified)

Note: original top speed with 2000W motor was
Range60 Miles (96 Kilometers)
(estimated, not yet verified)

Note: original range with SLA batteries was 25
EV Miles
Start:200 Miles (321 Kilometers)
Current:200 Miles (321 Kilometers)
Total:0 Miles (0 Kilometers)
    As of 9/30/2019
Seating Capacity2
Curb Weight280 Pounds (127 Kilograms)
(estimated, not yet verified)
Tires150/70-13 rear, 120/70-12 front
Conversion Time6 months
Conversion Cost$3000

code by jerry