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3.7V Lithium Batteries 2540 Manufacturer In China
Welcome to the Hanery 2540 series, a cornerstone of power for professional handheld devices. With its robust 25mm x 40mm footprint, this polymer lithium-ion line is engineered to provide substantial capacity and unwavering reliability for devices that operate in demanding environments.
- Optimized for Professional Use
- Informed Selection Guidance
- The Foundation for Your Custom Needs
- Leverage Our Engineering Depth
- A Dependable Supply Chain
- Validate Our Quality Risk-Free
Safety
Low Self-Discharge
Long Lifespan
Lightweight
Your 3.7V 2540 LiPo Battery Supplier In China
Hanery is your specialist manufacturer for the 2540 (25mm x 40mm) series of 3.7V LiPo batteries, a form factor trusted by designers of professional-grade portable electronics for its excellent balance of energy capacity and physical robustness. We have dedicated our manufacturing expertise to perfecting this footprint, resulting in exceptional consistency and a level of reliability that your professional customers will depend on.
Partnering with Hanery means choosing a factory that understands the importance of durability and long-term performance. We provide a direct, transparent path from engineering collaboration to high-volume production, ensuring the battery at the heart of your product is a source of strength and reliability for your brand.
Wholesale 2540 Lithium Polymer Batteries From Hanery
Any Industries Hanery Served By Custom 2540 Batteries
The robust and high-capacity nature of the 25x40mm dimension makes it ideal for professional tools:

Mobile Computers & Barcode Scanners
Providing reliable, shift-long power for logistics and retail hardware.

GPS & Geospatial Devices
Powering field data collectors and rugged GPS units with all-day endurance.

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

Handheld Diagnostic Instruments
Energizing a wide range of portable industrial and medical testing equipment.

Portable Audio & Media
Driving MP3 players, voice recorders, and other compact media devices.

Smart Home Controls
Powering advanced remote controls and portable smart home interfaces.
Is Battery Failure a Risk to Your Brand's Professional Reputation?
Build on a foundation of trust. Our batteries are engineered for the unwavering reliability that professional users demand.
Customized Your 2540 Batteries From Chinese Manufacturer
Even on our standard platform, we provide deep customization:
Precision Capacity Engineering
We can fine-tune the battery's internal structure to achieve a specific capacity or thickness.
Performance Profiling
We can formulate the cell for high-discharge rates (power focus) or low self-discharge (endurance focus).
Application-Specific Safety Protocols
We integrate a compact PCM or a smart BMS with protection parameters tailored to your device.
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
Project Kick-off & Analysis
We start by analyzing your technical needs and how the 2540 battery will function in your device.
Technical Design & 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
Informed Product Selection
Our experts ensure you choose the ideal 2540 model, preventing over-engineering or under-performance.
Dependable Field Performance
Our stringent QC process for this high-volume series minimizes field failures and protects your professional 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 2540 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.




