What is EN 50604? Why is it important? How to source EN50604-certified battery packs

With the rapid growth of electric mobility, especially in the electric bicycle (eBike) sector, battery safety and reliability have become crucial. With increasingly stringent safety regulations in Europe, EN 50604 has become a key certification standard for lithium-ion battery systems in light electric vehicles (LEVs). So, what exactly is EN 50604? Why is it so critical? And how can you find batteries that meet this standard?

This article will provide a detailed explanation of:

What is EN 50604?

Why is EN 50604 certification important?

Key safety tests in EN 50604

How to select and purchase EN 50604 battery packs

Why choose Shenzhen FirstPower Energy Co., Ltd. (FirstPower)

What is EN 50604?

EN 50604-1:2016 is the European safety standard for rechargeable lithium-ion battery systems used in light electric vehicles (LEVs). It applies to the following devices:

Electric bicycles (eBikes)

Electric scooters

Electric skateboards

Electric wheelchairs

Other small personal mobility devices

Developed by CENELEC (European Committee for Electrotechnical Standardization), this standard covers battery design, testing, and performance requirements to ensure the safety of battery systems under normal and fault conditions.

Why is EN 50604 important?

1. Ensure Safety

Although lithium batteries offer high energy density and efficiency, they are highly sensitive to abnormal conditions such as overcharging, overheating, and mechanical damage, which can easily lead to:

Fire

Explosion

System failure

The stringent testing standards of EN 50604 significantly reduce:

The risk of thermal runaway

Battery short circuits

Overcharge/overdischarge damage

Structural failure caused by vibration or impact

2.Meet European Regulations

To sell eBike batteries or LEV battery systems in the EU market, many countries require compliance with the EN 50604 standard as part of CE certification. Non-compliance can result in:

Customs detention

Legal penalties

Product recalls

Loss of customer trust

3.Enhance Brand Trust

EN 50604 is a symbol of battery quality and safety. For brands, OEMs, or distributors, products certified with this certification offer the following benefits:

Increase consumer trust

Demonstrate a company’s commitment to quality

Strengthen product credibility in a competitive market

4.Reduce legal and insurance risks

Many insurance companies prioritize certification when handling battery accident claims. EN 50604 provides manufacturers and distributors with additional legal and insurance protection.

What does EN 50604 test?

EN 50604 includes several stringent battery safety tests, including:

Electrical Safety Testing

Overcharge Protection

Over-Discharge Protection

Short-Circuit Protection

Overcurrent Protection

Cell Balancing and BMS Safety Control

Mechanical Safety Testing

Vibration Testing

Drop and Impact Testing

Pressure/Crush Testing

Case and Structural Support Testing

Thermal Testing

High/Low Temperature Resistance

Temperature Cycling Testing

Thermal Runaway Protection

Environmental Testing

Waterproofing Rating (IP Rating)

Dustproofing

Salt Spray and Corrosion Testing

BMS (Battery Management System) Functional Requirements

Fault Detection and Alarms

Data Logging and Monitoring

Voltage and Temperature Monitoring

Communication Protocol Support (CAN, UART)

How to Purchase EN 50604-Certified Battery Packs?

Sourcing batteries is more than just finding a supplier; it’s more important to find a partner who can consistently provide compliant, safe, and high-performance battery solutions.

Here’s a buying guide:

Step 1: Determine Your Battery Requirements

Before looking for a battery supplier, you should clarify the following parameters:

Battery voltage and capacity requirements (e.g., 36V, 48V)

Electric device type (e.g., e-bike, scooter)

Current output and power requirements

Waterproof rating (e.g., IP65)

Communication protocol requirements (e.g., CAN, UART, RS485)

Step 2: Request EN 50604 certification

Qualified battery products should include the following:

EN 50604-1 test report (EU-accredited laboratory)

CE Declaration of Conformity

Battery technical specifications

Safety Data Sheet (SDS)

BMS Functional Specification Documentation

Step 3: Select an Experienced Manufacturer

Experienced battery manufacturers are more reliable in design, manufacturing, and testing. Evaluation criteria include:

Years of Industry Experience

Independent R&D Capabilities

In-House Testing Facilities

After-Sales Service System and Technical Support

Step 4: Customized Service Capabilities

Qualified suppliers should be able to provide:

Customized battery structure (shape, port, housing)

Smart BMS Integration

Communication Interface Compatibility

Brand Logo and Label Customization

Step 5: Conduct Small-Batch Trial Production

Before placing large-scale orders, it is recommended to conduct sample testing or small-batch trial production to verify the following:

Actual performance and compatibility

Battery efficiency and thermal management capabilities

Reliability such as shock resistance, waterproofness, and drop resistance

Seamless integration into the vehicle system

Recommended Manufacturer: Dongguan Yi Zhan Electronic Technology Co., Ltd.

If you are looking for a reliable EN 50604 battery supplier,Dongguan Yizhan Electronic Technology Co., Ltd. is a trusted industry leader.

✅ About Dongguan Yizhan Electronic Technology Co., Ltd.

Over 12 years of experience in lithium battery R&D and manufacturing

Independent R&D and design capabilities

Over 10 million battery packs shipped worldwide

ISO9001 and ISO14001 quality and environmental management system certifications

Products comply with multiple international standards, including EN 50604, IEC 62133, UN38.3, and CE.

✅ Dongguan Yi Zhan Electronic Technology Co., Ltd.EN 50604 Product Line

Dongguan Yizhan Electronic Technology Co., Ltd. has developed a series of EN 50604-certified eBike batteries, including:

Downtube batteries (thickened housing, intelligent BMS, IP65 waterproof)

Rear rack batteries

Seat tube batteries

Customized battery packs (e.g., for cargo carts and scooters)

Product Features:

Advanced intelligent BMS with comprehensive temperature, voltage, and current protection

Reinforced internal structural columns for improved impact resistance

Supports CAN/UART communication interfaces

Long cycle life (>1000 cycles)

Supports fast charging

✅ Choose Why Dongguan Yi Zhan Electronic Technology Co., Ltd.?

Products are EN 50604 certified

Flexible OEM/ODM customization services available

Factory direct supply at competitive prices

Extensive export experience

Professional technical support and after-sales service

Official website: www.yizhanbattery.com

Summary

EN 50604 is more than just a battery safety standard; it represents the high demands for safety, performance, and regulatory compliance in the electric mobility era.

With growing demand for eBike and LEV applications in Europe, adopting EN 50604-certified lithium battery packs will help companies in the global market:

Improve product safety

Meet regulatory requirements

Build brand reputation

Reduce after-sales and legal risks

By partnering with an experienced, internationally certified manufacturer like Dongguan Yi Zhan Electronic Technology Co., Ltd., companies can confidently bring compliant, safe, and reliable lithium battery products to market.

Interested in learning about EN 50604 battery pack solutions?

Contact Dongguan Yi Zhan Electronic Technology Co., Ltd. for detailed specifications, certification documents, and professional customization advice!