E-scooter
ES4
- Years
- 2018-2021
- Type
- commuter
- Motor
- single 300W front hub
- Battery
- 36V 374Wh (internal + external pack)
Model details from the Pedalwise device catalog (source). Check your own manual before you rely on a spec.
Guides for the ES4
No guides written for this exact model yet.
Parts and tools for the ES4
Each link explains the part and how to match it. Sizes and connectors differ between models, so check them against your manual before you buy.
Parts and tools by systemShow
Segway-Ninebot guides
- Segway Ninebot E2 Pro: error 14, throttle fault, scooter won't accelerateTroubleshootingError 14 on the Segway E2 Pro is a throttle Hall fault, usually a finger throttle that doesn't spring back at startup. The fix is to free the throttle, loosen and retighten its screw if it sticks, then replace it.
- Segway Ninebot E2 Pro: error 15 at startup, brake lever sensor faultTroubleshootingError 15 on the Segway E2 Pro is a brake lever Hall signal fault. It shows when the brake lever hasn't sprung fully back at startup. Free the lever and restart before replacing parts.
- Segway Ninebot E2 Pro: error 39, battery temperature abnormalTroubleshootingError 39 on the Segway E2 Pro means the battery temperature is out of range. Bring the scooter into a normal temperature range, let it rest more than half an hour, and replace the battery only if it stays.
- Segway Ninebot E2 Pro: error 42, motor not calibratedTroubleshootingError 42 on the Segway E2 Pro means the motor isn't calibrated. A calibration you can do with the brake lever and power button fixes it. If it doesn't take, contact Segway after-sales.
- Segway Ninebot E2 Pro: error 51, controller overvoltage after chargingTroubleshootingError 51 on the Segway E2 Pro is controller overvoltage, and the main cause is a charger not made for the scooter. Restart, switch to the correct Segway charger, and contact after-sales if it stays.
- Segway Ninebot E2 Pro: error codesReferenceThe Segway Ninebot E2 Pro fault codes, 10 to 54, with the beep pattern, what each means and the first safe step.
- Segway Ninebot Max G30P and G30LP: error 10 dashboard communication faultTroubleshootingOn the Segway Ninebot Max G30, error 10 means the dashboard and controller have lost communication. Restart and update in the app; after that, the dashboard harness and then the dashboard itself are the usual fixes.
- Segway Ninebot Max G30P and G30LP: error 14 throttle fault, scooter won't accelerateTroubleshootingOn the Segway Ninebot Max G30, error 14 is a throttle Hall sensor fault. Check that the throttle springs back and isn't blocked; if 14 stays, the fix is a new throttle, which Segway shows in an official video.
- Segway Ninebot Max G30P and G30LP: error 18 motor Hall sensor fault, motor won't driveTroubleshootingOn the Segway Ninebot Max G30, error 18 is a motor Hall sensor fault. Reseat the motor connection first; after that the fix is a new motor wheel, a controller, or a Hall sensor repair inside the motor.
- Segway Ninebot Max G30P and G30LP: error 21 battery communication faultTroubleshootingOn the Segway Ninebot Max G30, error 21 means the controller can't communicate with the battery's management system. Charge for several hours first; the rest is a shop job on the battery connector, battery or controller.
- Segway-Ninebot scooter troubleshooting: flats, error codes and common fixesTroubleshootingSafe checks for Segway-Ninebot Max, F, E, P and ES kick scooters, from charging and error codes to tire changes, brakes and current recalls.
General scooter troubleshooting
- Battery dies fast or range droppedTroubleshootingYour e-bike used to go further on a charge. How to tell normal wear and riding conditions from a battery or charger problem.
- Battery won't chargeTroubleshootingThe charger light doesn't change or the battery won't go up. Safe checks on the charger, the outlet and the port, and when to stop.
- Display blank, flickering or frozenTroubleshootingThe handlebar display won't show anything, flickers or freezes. Usually a plug, the battery, water or the display itself.
- E-bike battery care: charging, storage and when to replace itHow-to guideHow to charge, store and check an e-bike battery so it lasts longer and stays safe, plus what to do with one that's worn out or damaged.
- E-bike or scooter won't turn onTroubleshootingNothing happens when you press the power button. Work through the battery, the key and the plugs before assuming the worst.
- Fixing a flat on an e-bike, step by step, and how to get fewer of themHow-to guideFlats on e-bikes are harder than on regular bikes because of hub motors and heavier tires. Step-by-step repair for front and rear hub-motor wheels, plus prevention.
- How to adjust e-scooter brakesHow-to guideCheck and adjust drum, disc and electronic brakes on common e-scooters from Segway, Xiaomi, NIU and Hiboy, using each maker's own instructions.
- How to adjust mechanical disc brakesHow-to guideSet cable tension, center the caliper and set pad clearance on cable-pulled disc brakes, for the common caliper types.
- How to bed in new disc brake pads and rotorsHow-to guideBed in new disc brake pads or rotors before your first ride with a set sequence of stops, and what to do if the brakes stay noisy.
- How to check and replace disc brake padsHow-to guideCheck disc brake pad wear against the right wear limit for your brake, then remove and fit new pads on hydraulic or cable disc calipers.
- How to check your brake cut-off switches and throttle before you rideHow-to guideA quick pre-ride test that the brake levers cut motor power and the throttle springs back. It is about confirming these safety features work, and getting them fixed if they don't.
- How to check your e-bike or e-scooter chargerHow-to guideMake sure you have the right charger, read its lights the way your maker documents them, spot cord and plug damage, and charge in a safe place. Never open a charger.
- How to clean, check and true disc brake rotorsHow-to guideSpot a contaminated, worn or bent rotor, clean it with isopropyl alcohol or soapy water, check the wear limit and straighten light bends with a truing fork.
- How to fix squealing disc brakesHow-to guideTrack down why your disc brakes squeal or howl: water and dirt, contaminated pads, poor bed-in, a rubbing caliper or worn parts, and when to replace pads and rotors.
- How to inspect and clean e-bike and e-scooter connectorsHow-to guideA careful, one plug at a time check of the external connectors on your e-bike or e-scooter: what to look for, how to dry and reseat them, and when to stop and get a pro.
- How to store your e-bike or e-scooter battery for winterHow-to guideLeave the battery partly charged, keep it indoors in a cool, dry, safe spot, and check it during storage. Here is how to do it for Bosch, Shimano, Rad, Yamaha and Segway batteries.
- How to update your e-bike or e-scooter firmware the official wayHow-to guideUse your maker's own app or your dealer to check for and install firmware updates. Here is how Bosch, Shimano, Segway and Xiaomi do it, and why to skip third-party firmware and speed tools.
- Motor cuts out or power comes and goesTroubleshootingThe motor stops helping on and off, over bumps or on hills. Usually a loose connection, a brake sensor, heat or a tired battery.
- My e-bike or scooter got wetTroubleshootingRode through heavy rain or a deep puddle, or washed it with a hose? What to do now, and the signs that water got in.
- Repair or replace your e-bike? How to decideHow-to guideWhen an e-bike or scooter breaks, repair is often cheaper than replacing it, and it keeps a working machine out of the landfill. How to weigh it up.
- Stop disc brake rub: center the caliperHow-to guideFix a rubbing disc brake by checking the wheel and rotor, then centering a hydraulic or mechanical caliper over the rotor.
- Throttle not workingTroubleshootingThe thumb or twist throttle doesn't move the bike or scooter. Simple checks before the throttle or controller gets replaced.