3.7V Lithium Batteries 2040 Manufacturer In China

Explore the Hanery 2040 series, the ideal power solution for elongated handheld devices. With its versatile 20mm x 40mm footprint, this series delivers higher capacity and extended runtime, enabling more powerful features in a slim, ergonomic form factor.

3.7V 400 mAh Lithium Batteries 502040

Safety

Low Self-Discharge

Long Lifespan

Lightweight

Documentation & Invoicing

Your 3.7V 2040 LiPo Battery Supplier In China

Hanery is your specialist manufacturer for the 2040 (20mm x 40mm) series of 3.7V LiPo batteries, a form factor prized for its excellent capacity-to-footprint ratio. We have optimized our production lines for this specific size, ensuring exceptional consistency and quality control. This focus translates into a highly reliable and cost-effective power core for your products, from professional instruments to high-performance consumer electronics.

As your direct-from-factory partner, we offer a transparent and efficient path from concept to mass production. Our engineers function as an integral part of your development process, providing expert guidance to ensure the battery solution is not just a component, but a competitive advantage for your product.

Industries Served By Our Custom 2040 Batteries

The balanced dimensions and higher capacity of the 2040 series make it the perfect choice for a wide range of electronics:

Drug Delivery Systems Batteries

Portable Medical Devices

Powering handheld monitors, diagnostic tools, and portable therapy devices.

Pet Tracker Banner

GPS Tracking Units

Providing long-lasting, compact power for asset, vehicle, and personal trackers.

Wireless Security Cameras Batteries

Wireless Sensors & IoT

Energizing remote sensors, data loggers, and other connected IoT devices.

Barcode Scanners & Mobile Computers Batteries

Barcode Scanners & Mobile Computers

Providing shift-long power for logistics and retail hardware.

Speaker Batteries

Portable Audio & Media

Driving MP3 players, voice recorders, and other compact media devices.

Video Doorbells Batteries

Two-Way Radios & Communication Devices

Powering professional communication tools with a slim and efficient battery.

Need Even More Runtime or a Unique Shape?

Our standard series are just the starting point. Let our engineers design a fully custom battery that perfectly fits your most ambitious projects.

Customized Your 2040 Batteries From Chinese Manufacturer

Even on our standard platform, we provide deep customization:

Capacity & Thickness Tuning

We can fine-tune the internal design to achieve a specific capacity or thickness that precisely matches your needs.

Performance Profiles

We can formulate the cell for high-discharge rates (power focus) or low self-discharge (endurance focus).

Intelligent Power Management

We integrate a compact PCM or a smart BMS to protect the battery and optimize its performance.

Seamless Assembly Integration

We offer custom tabs, wire lengths, and specific connectors to simplify your production line.

Environmental Fortification

We can use special electrolytes to ensure reliable performance in extreme hot or cold conditions.

Full OEM Branding

We apply your logos and part numbers, making the battery a seamless part of your branded product.

Get Your Batteries in Bulk Step By Step

Initial Project Scoping

We start by analyzing your technical needs and how the 2040 battery will function in your device.

Engineering & Quotation

Our team provides a detailed proposal with clear specifications and wholesale pricing.

Rapid Prototyping & Validation

We deliver pre-production samples for your rigorous testing and design validation.

Refinement & Final Sign-Off

We incorporate your feedback and lock in the final design before scaling up.

Scalable & Consistent Manufacturing

Your bulk order is produced with exceptional consistency in our advanced, quality-controlled facility.

Global Logistics & Compliant Delivery

We manage the entire compliant shipping process to your global locations.

6 Benefits From Your Battery Manufacturer

Optimized Selection

Our experts ensure you choose the ideal 2040 model, preventing over-engineering or under-performance.

Assured Product Performance

Our stringent QC process for this high-volume series minimizes field failures and protects your brand.

Direct Manufacturing Value

As a direct manufacturer, we eliminate middlemen, offering you better value and direct communication.

Integrated Supply Chain

We act as your end-to-end partner, simplifying procurement from engineering to global delivery.

Accelerated Development

Leveraging our mature 2040 platform significantly shortens your product development timeline.

A Partner for Growth

We have the capacity and commitment to scale production with you as your product succeeds.

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