HKM-A3 Electric Scooter 350W Peak 500W 36V 13Ah 468Wh 27.9-Mile Range 33.9 lb Regenerative Braking 21700 Cell Pack

HKM-A3 · electric scooters · 468 Wh (metric and US units listed) · 33.9 lb (14.0 kg)

Air Free Honeycomb Tyres and 21700 Cells Under a 33.9 lb Frame350W Extended Range 21700 Cells

The A3 Plus makes extended-range commuting feel effortless. At 33.9 pounds it folds, carries, and stows without a second thought, yet still returns up to 27.9 miles on a single charge. The A3 Plus is built around one idea: go farther on every charge.

The 468Wh battery stretches a single charge to 27.9 miles, and the 500W peak motor keeps pace when the road tilts uphill.

Regenerative braking turns every stop and descent into extra range, feeding energy back into the pack instead of wasting it as heat.

At a Glance

• Model — HKM-A3 Plus | Extended-Range Electric Scooter
• Motor — 350W nominal (500W peak) rear-hub motor
• Battery — 36V 13Ah lithium-ion / 468Wh (21700 cells)
• Range per Charge — 27.9 mi (35 km)
• Top Speed — 15.5 mph (25 km/h), electronically governed
• Frame — 6061 aerospace aluminum
• Wheels — 8-inch solid honeycomb
• Load Rating — 220 lb (100 kg)
• Lighting — 3W LED headlight + rear brake light
• Foldable — One-step folding mechanism
• Smart Features — LCD display, cruise control, riding modes
• Gradeability — 30° incline (~58% grade)

Frame, Motor and Deck

Eight A3 Plus details that make a extended-range daily rider work. A 350W nominal motor with 500W peak output pulls from the rear wheel for a planted, predictable takeoff, with reserve power for ramps and bridges.

The 36V 13Ah 468Wh battery rides low in the deck for a stable stance. The management system balances cells and protects the pack against overdraw.

Charging habits protect the pack long term. Up to 27.9 mi (35 km) on one charge covers the week’s short trips without a plug.

• Motor: 350W nominal (500W peak) rear-hub motor
• Battery: 36V 13Ah lithium-ion / 468Wh (21700 cells)
• Range per Charge: 27.9 mi (35 km)
• Top Speed: 15.5 mph (25 km/h), electronically governed
• Frame: 6061 aerospace aluminum
• Wheels: 8-inch solid honeycomb

Hills and headwinds tax any vehicle, so treat the figure as a planning point. Plan routes around the charge, not against it. Regenerative braking captures energy on every stop and descent, feeding it back into the 468Wh pack.

Battery, Range and Charging

The 350W rear-hub motor and a low 33.9 lb deck make the ride feel planted the moment both feet land.

8-inch honeycomb tires smooth out broken pavement, and the 468Wh pack keeps the glide going for up to 27.9 miles per charge.

Eight reasons the extended-range A3 Plus earns its daily keep. The 350W motor drives the rear wheel, so the front stays light for steering while the rear grips and pushes.

Regenerative braking feeds energy back into the 468Wh pack on descents, and the A3 Plus settles into a stable ride the moment both feet land.

Who It Fits and How It Rides

The 350W rear-hub motor pulls from the back wheel for a planted, predictable takeoff, air-free 8-inch honeycomb tires shrug off flats for good, and a 30-degree gradeability climbs ramps without a run-up.

A 3W headlight lights the lane after dark, IPX4 seals keep light rain outside, and the 6061 aerospace frame keeps every gram honest.

• It turns the downhill into a little more range
• At 33.9 lb the 6061 frame folds for stairs, trunks, and under-desk parking
• Carry it by the stem with one hand while the locked deck keeps the rest compact
• The folding latch is the joint that matters a great deal

What's in the Box

HKM-A3 ships in one carton with the the product and the parts listed above. Check each item against the list before the first use, and keep the carton for the first month in case something has to go back.

Color and Finish

468Wh of capacity in a 33.9 lb frame, tuned for the daily ride. The 36V 13Ah pack holds 468Wh and fills in about 3.5 hours (0-80%) from a standard wall outlet with the supplied charger - no disassembly, no special equipment.

Real-world range runs 19.7 to 27.9 miles depending on rider and cargo weight, terrain, and temperature, and cold weather trims capacity until the pack warms.

Battery Care and Maintenance

Charge soon after a ride rather than parking it warm and full, which ages the cells faster. Store the scooter indoors at room temperature, and keep the charge-port cover closed so dust and moisture stay out of the electronics.

Confirm the battery is charged and the system is powered on, then check all connectors are seated. A connector left half-seated is a common no-power cause.

Check the honeycomb tires for cuts and embedded debris first - they are air-free, so flats are not the issue. A sudden range drop usually points to the battery or terrain.

Check pad and rotor condition; if the lever still reaches the bar, have the circuit serviced. Wet performance is the true test of any brake system.

Specifications

Frequently Asked Questions

Service and Policies

Coverage that lasts beyond the box. Orders ship free with a tracking number in 2 to 5 business days. From delivery, the product is protected for 180 days against manufacturing defects and transit damage, returnable within 30 days for a full refund, and covered by a 24-month parts-and-labor warranty on manufacturing defects. Four policies, one idea: ship it free, protect it for 180 days, take it back for 30, and stand behind it for two years.

HKM-A3 · Electric Scooters · 350W nominal rear-hub motor · 36V 13Ah lithium-ion · 27.9 mi · 15.5 mph electronically governed · 6061 aerospace aluminum · 8-inch solid honeycomb · 220 lb · 3W LED headlight + rear brake light · One-step folding mechanism · LCD display cruise control riding modes · 30° incline · 3.5 hours · 33.9 lb · 468 Wh · Air-free puncture-resistant