Custom E-Bike Battery Manufacturer in China

We design and build OEM lithium battery packs for e-bikes, scooters, and light electric vehicles—fully certified and globally shipped.

Custom E-Bike Battery Packs Tailored to Your Specifications

At Junda, we specialize in custom e-bike battery solutions engineered to match your unique product requirements—whether for city commuters, cargo bikes, mountain bikes, or personal mobility devices.

Our experienced R&D team supports full customization, including:

  • Battery pack configuration (voltage, capacity, size)

  • Housing and case design to match your frame

  • Smart BMS with CAN, UART, or RS485 protocols

  • Waterproof and shock-resistant designs (IP65–IP67)

We go beyond standard e-bike batteries—our solutions also cover electric scooters, skateboards, micro-mobility platforms, and more.

Explore Our eBike Batteries

At JUNDA, we offer our global partners high-quality, customizable e-bike battery packs, including 36V, 48V, and 52V models in popular case styles like Hailong, Dorado, Rear Rack, and more—ready to meet your technical and branding needs.

Polly Battery Pack

A compact and lightweight battery pack designed for urban commuter bikes. Polly batteries are easy to mount on the down tube and offer reliable performance for daily rides.

Rear Rack Battery

This battery is mounted on the rear cargo rack and offers high capacity for city bikes and step-through frames. Ideal for riders who prefer easy access and balanced weight distribution.

Hailong Battery Pack

One of the most popular case styles in the e-bike industry. Hailong batteries are sleek, durable, and compatible with most down-tube mounted e-bikes. Available in various voltages and capacities.

Folding & Hiding eBike Battery Packs

Specially designed for folding electric bikes. These batteries are compact, lightweight, and easy to remove—perfect for portable and space-saving mobility solutions.

Triangle Pack Battery

Custom-shaped battery packs that fit neatly into the triangular space of the bike frame. Triangle packs are ideal for mountain and cargo bikes needing higher power and stability.

Silver Fish Battery

A classic battery type with a side-slide design, often used in traditional city e-bikes. Known for its high capacity and easy replacement in aftermarket and older models.

Kettle Battery

Also known as bottle-style batteries, these units are shaped like water bottles and mount on the seat tube. Ideal for lightweight and stealthy city bikes with minimal visual impact.

Reention eBike Battery

High-quality battery cases from Reention, including the popular Dorado series. Widely used by OEM brands for their modular design, easy integration, and compatibility with smart BMS systems.

Fuel Tank Battery

With a design resembling a motorcycle fuel tank, this battery adds a bold, retro look while offering large capacity. Ideal for cruiser-style or vintage-inspired electric bikes.

We’re committed to delivering reliable custom battery solutions—backed by expert support and clear quotations.

Why Choose Junda As Your Custom Battery Pack Manufacturer?

With more than a decade of experience, Junda delivers precision-engineered lithium battery packs tailored for your unique applications. Here’s what makes us a trusted partner for global B2B clients:

Our Engineering Expertise

At Junda, our engineering team is led by a senior battery architect with 15+ years of hands-on experience at CATL, BYD, and other industry leaders. Backed by a cross-functional team of 6 engineers, we provide full-cycle development from design and simulation to testing and certification. We’ve completed over 1,000 custom battery pack projects across sectors like eMobility, energy storage, medical devices, and industrial tools—always focusing on safety, reliability, and performance.

Our Quality Assurance System

Junda operates under a strict ISO 9001:2015-certified quality management system, overseen by our QA director and implemented across every department. From incoming cell inspection to final pack aging tests, every step is digitally tracked and traceable. Our system ensures stable supply chain sourcing, controlled assembly processes, and compliance with industry benchmarks such as UN38.3, CE, and IEC 62133.

Our Assembly & Integration Process

Junda’s battery pack assembly process integrates mechanical, electrical, and thermal design tailored to your use case. Our capabilities include IP67/IP68 waterproof housing, high-discharge BMS systems, CAN/RS485 communication protocols, and reinforced designs for vibration or extreme environments. We conduct cell sorting, welding, insulation, balancing, and aging tests in-house to ensure consistent performance and longevity.

Our End-to-End Support

From your first inquiry to final delivery, we provide responsive, multilingual support backed by a dedicated sales and engineering team. We guide clients through technical evaluation, prototyping, compliance, and logistics—ensuring a transparent, stress-free experience. Whether you need an urgent sample or a long-term OEM solution, we’re here to make your battery development process efficient and reliable.

Simple 3 Steps Process

Submit Your Requirements

Share your voltage, size, application, and quantity needs—we’ll assess your project quickly.

Confirm Specifications

Our engineers will optimize the design, confirm details, and provide samples if needed.

Production & Delivery

Once approved, we start production and arrange fast, secure shipping to your destination.

Get Free Quote

Need a custom lithium battery pack? Just send us your specs—we’ll help you choose the right voltage, case, and configuration for your application.

Custom Battery Packs Made Easy

At JUNDA, we make customization easy. Follow these 3 simple steps to start today:

🔧 Step 1: Tell Us What You Need

Send your battery requirements — voltage, capacity, casing type, or upload drawings/photos.

💡 Step 2: Get Solution & Quote

We’ll evaluate your specs and recommend the best configuration. A detailed quote will be sent within 24 hours.

🚚 Step 3: Confirm & Produce

After approval and deposit, we start production. Shipping and tracking will be arranged for fast, secure delivery.