Connecting the Reset Button on a Razor E100 Electric Scooter

The Razor E100 electric scooter is a popular entry-level model for kids and young riders, featuring a chain-driven motor system and a simple electrical architecture. When troubleshooting electrical issues or performing repairs, understanding the reset button location and proper connection procedures is essential for safe operation and maintenance.

Understanding the Reset Button Function

The reset button on a Razor E100 serves as a circuit breaker that protects the electrical system from overcurrent conditions. This safety feature automatically trips when the motor draws excessive current, which can occur during:

• Overloading: Carrying weight beyond the 120-pound capacity limit


• Motor strain: Prolonged uphill riding or starting on steep inclines


• Mechanical binding: Chain misalignment, worn sprockets, or seized bearings


• Battery issues: Low voltage causing the motor to draw extra current


• Short circuits: Damaged wiring or water intrusion

Locating the Reset Button on Razor E100

The reset button is typically located on the left side of the scooter deck, near the battery compartment. On most E100 models manufactured from 2018-2025, you'll find it positioned:

• Underneath the deck plate, accessible through a small access hole


• Near the battery pack connection point


• Adjacent to the main power connector


• Approximately 6-8 inches from the rear wheel hub

The button itself is usually a red push-button circuit breaker rated at 15-20 amps, depending on the model year. Some versions feature a black button with a red indicator ring.

Proper Reset Button Connection Procedure

If your reset button has become disconnected during maintenance or repair, follow these steps to reconnect it properly:

Safety Preparation

• Disconnect the battery pack completely


• Ensure the power switch is in the OFF position


• Work in a well-lit area with proper tools


• Keep a multimeter handy for testing continuity

Wiring Identification

The reset button typically connects to two wires:

• Input wire: Usually red or red/white striped, coming from the battery


• Output wire: Connects to the controller, typically red or black

The circuit breaker is a normally closed switch, meaning electricity flows through it when not tripped. When excessive current flows, an internal thermal element opens the circuit.

Connection Steps

1. Identify Terminal Posts: The reset button has two terminal posts or quick-connect tabs. These are typically brass-colored and may be labeled "IN" and "OUT" on some models.

2. Connect Input Wire: Attach the wire coming from the battery positive terminal to one post. Most E100 models use ring terminals or spade connectors. Ensure the connection is snug but not over-tightened.

3. Connect Output Wire: Attach the wire leading to the controller to the second post. This completes the circuit when the button is reset.

4. Secure Connections: Use a 7mm or 8mm wrench to tighten terminal nuts if applicable. For spade connectors, ensure they snap firmly onto the tabs.

5. Verify Polarity: While the reset button itself is not polarity-sensitive, confirm that you're connecting it in series with the positive power line, not the ground.

Testing and Verification

After reconnecting the reset button, perform these tests before reassembling:

• Continuity test: Use a multimeter to verify the button conducts electricity when pressed


• Visual inspection: Ensure no bare wires are touching the frame or each other


• Button function: Press and release the button several times - it should click audibly


• Power test: Reconnect the battery and verify the scooter operates normally

Common Reset Button Issues

Frequent Tripping

If the reset button trips repeatedly during normal operation, this indicates an underlying problem:

• Battery degradation: Weak batteries cause voltage sag, increasing current draw (replace if below 24V under load)


• Motor wear: Worn brushes or bearings increase resistance


• Chain problems: Tight or misaligned chains overload the motor


• Controller malfunction: A failing speed controller may not regulate current properly

Button Won't Reset

If the reset button won't stay engaged when pressed:

• The internal thermal element may still be hot - wait 5-10 minutes


• The circuit breaker may be damaged and require replacement


• There may be a persistent short circuit preventing reset

Replacement Specifications

If you need to replace the reset button, use these specifications:

• Voltage rating: 24V DC minimum (30V recommended)


• Current rating: 15-20 amp thermal circuit breaker


• Terminal type: 1/4" spade terminals or M4 screw posts


• Trip current: Typically set at 18-22 amps


• Reset type: Manual push-button reset

Genuine Razor replacement parts are available through authorized dealers, or you can use equivalent automotive-grade circuit breakers with matching specifications. Ensure any replacement is rated for DC current, as AC-rated breakers are not suitable.

Maintenance and Prevention Tips

To minimize reset button issues and extend the life of your E100's electrical system:

• Regular inspections: Check wiring connections every 3-6 months for corrosion or looseness


• Keep it dry: Avoid riding through deep puddles; moisture can cause short circuits


• Proper storage: Store indoors in a dry location to prevent corrosion


• Battery maintenance: Charge after each ride and maintain battery at 50-80% charge during storage


• Chain lubrication: Keep the drive chain properly lubricated to reduce motor strain


• Weight limits: Respect the 120-pound weight capacity to avoid overloading

Safety Considerations

When working with the electrical system of a Razor E100, always observe these safety practices:

• Disconnect power first: Always unplug the battery before working on electrical components


• No modifications: Don't bypass the reset button or use higher-rated circuit breakers


• Proper tools: Use insulated tools when working with electrical connections


• Wire management: Ensure wires are routed away from moving parts and sharp edges


• Professional help: If you're uncomfortable with electrical work, consult a qualified technician

Quick Troubleshooting Chart

• Scooter won't turn on: Check reset button, ensure it's pressed in and latched


• Motor cuts out during riding: Reset button tripping - check for mechanical binding or weak battery


• Button pops immediately: Short circuit present - inspect all wiring for damage


• No click when pressing button: Circuit breaker may be faulty - test with multimeter or replace


• Intermittent power: Loose connection at reset button terminals - tighten and secure

Understanding the proper connection and function of your Razor E100's reset button ensures reliable operation and helps you diagnose electrical issues quickly. This simple but critical component protects the scooter's electrical system from damage, and maintaining it properly contributes to years of safe, enjoyable riding.