OKAI ES400A — side profile, white studio background
1 / 5
🛴 Electric Scooter
Fleet Recommended
Swappable Battery

OKAI

ES400A

Sharing-fleet e-scooter with under-deck swappable battery (611–784 Wh options), 350 W motor, 4G IoT + multi-GNSS, UL 2271 + UL 2272 certified.

37

miles range

15

mph top speed

350

watts motor

First introduced: 2022

Technical Specifications

Performance

Range
37 miles (60 km)
Top Speed
15 mph (25 km/h)
Motor Power
350W
Peak Power
700W

Battery

Capacity
744 Wh
Voltage
48V
Charge Time
5 hours
Swappable Battery
Yes

Physical Specifications

Weight
67.5 lbs (30.6 kg)
Max Load
331 lbs (150 kg)
Wheel Size
12"
Tire Type
solid
Dimensions (Unfolded)
1200 × 505 × 1220 mm
IP Rating
IP54

Brakes & Suspension

Front Brake
mechanical_drum
Rear Brake
electromagnetic_drum
Regenerative Braking
Yes
Front Suspension
spring

Lighting

Front Light
LED
Rear Light
LED
Brake Light
Yes

Connectivity

Bluetooth
Yes
GPS
Yes
Cellular
4G LTE

Features & Capabilities

Key Features

Swappable Li-ion battery (under-deck)
4G LTE IoT + multi-GNSS GPS
350 W rated / 700 W peak rear-wheel motor
Front mechanical drum + rear electromagnetic regenerative brakes
Solid honeycomb tires (flat-proof)
Multi-protection BMS, fully potted for weather resistance
20% gradeability
UL 2271 + UL 2272 certified
Multiple battery cell options (BAK, Panasonic, LG, DMEGC)
Optional RTK module for centi-meter precision positioning

Pros

  • UL 2271 + UL 2272 certified out of the box
  • Multiple battery cell options (611–784 Wh)
  • Swappable battery for low operating cost
  • Solid honeycomb tires (zero flats)
  • Lighter than ES600 (30.6 kg vs 33 kg)

Cons

  • -Lower gradeability (20%) vs ES600 (25%)
  • -Smaller front wheel (12") vs some competitors with 14"+
  • -Solid tires give a stiffer ride than pneumatic

Ideal For

Fleet rentals
Shared mobility
Urban commuting

Compatible Fleet Platforms

Levy Fleets
Joyride
ATOM Mobility

About This Vehicle

The OKAI ES400A is a purpose-built sharing e-scooter designed for fleet operators. With a swappable Li-ion battery housed under the deck, a 350 W (700 W peak) brushless gearless rear-wheel motor, and 4G IoT with multi-GNSS positioning, it's engineered to keep operating costs low and uptime high.

Key features:

  • Swappable battery under the foot pedal — quick in-field swaps mean less downtime and lower charging logistics costs.
  • High-accuracy positioning — 4G LTE plus multi-GNSS (GPS / BeiDou / Galileo / GLONASS) lets the central console pinpoint each vehicle in real time.
  • Multi-protection BMS — the battery management system is fully potted to deliver robust, stable performance in harsh weather and high-vibration environments.
  • Rich optional accessories — stem lock, helmet lock, and RTK-grade positioning expand the ES400A's capabilities for permitted operations.

Specifications:

  • Net weight: 30.6 kg / 67.5 lb
  • Dimensions (L × W × H): 1200 × 505 × 1220 mm
  • Max load: 150 kg / 331 lb
  • Top speed: 12.4 mph (US, 20 km/h) or 15.5 mph (EU, 25 km/h)
  • Motor: Brushless gearless, rear-wheel drive, 350 W rated / 700 W peak
  • Torque: 28 N·m
  • Gradeability: 20%
  • Battery options: 47–48 V swappable Li-ion — BAK 16.75 Ah / 783.9 Wh, Panasonic 16 Ah / 768 Wh, LG HM2 15.5 Ah / 744 Wh, or DMEGC 13 Ah / 611 Wh
  • Range: ≤50 km (13 Ah) to ≤60 km (16.75 Ah) — approximately 31–37 mi
  • Charging time: ~5 hours (external 3 A charger)
  • Tires: Solid honeycomb — 12" front (288 mm) / 10" rear (252 mm)
  • Brakes: Front mechanical drum + rear electromagnetic + mechanical drum (regenerative)
  • Connectivity: 4G LTE IoT, Bluetooth, multi-GNSS GPS

Certifications:

  • US: UL 2272 (whole vehicle), UL 2271 (battery), FCC SDoC (47 CFR Part 15B), FCC ID (47 CFR Part 15C IoT)
  • EU: CE (EN 17128 whole vehicle), CB (IEC 62133:2017 battery), UN38.3 (battery transportation), CE IoT (EN IEC 62311 / 62368-1 / EN 301 489), RoHS, WEEE

Optional accessories: Stem lock (IPX7, 304 stainless cable), helmet lock (IP67, 48 V), RTK module (centi-meter precision via GPS / BDS / Galileo / GLONASS).

Packaging & logistics: 4 units per box (1150 × 1090 × 1280 mm); a 40 HQ container holds 44 boxes (176 units total).

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