Custom Lithium Polymer (LiPo) Battery Manufacturer & Wholesale

Hanery is a world-class manufacturer of custom polymer lithium-ion (LiPo) batteries. We specialize in leveraging the unparalleled design flexibility of LiPo technology to create ultra-thin, lightweight, and custom-shaped power solutions that enable our B2B partners to build smaller, lighter, and more powerful products. We support special shape battery customization, including ultra-thin, curved, and round lipo cells.

  • Voltage Range: 3.7V – 22.2V (Customizable)

  • Capacity: 50mAh to 10,000mAh+

  • Discharge Rate: 1C to 100C (High-discharge available)

  • Certifications: UN38.3, MSDS, CE, RoHS, UL.

3.7V 300 mAh Lithium Batteries 602030

Safety

Low Self-Discharge

Long Lifespan

Lightweight

Dedicated Prototype Line

Custom Lithium Polymer Battery Supplier In China

Hanery is a premier, engineering-driven manufacturer specializing in custom polymer lithium-ion (LiPo) batteries. We are not just a factory; we are your strategic B2B partner, dedicated to transforming your most ambitious design concepts into reality. Our expertise lies in creating high-performance, custom-shaped, and ultra-thin LiPo cells and battery packs that provide a distinct competitive advantage for your products in the global market.

By integrating seamlessly with your R&D and product design teams, we deliver more than just a component—we provide a comprehensive power solution. From initial consultation and rapid prototyping to high-volume, automated mass production and global certification, Hanery is the reliable manufacturing backbone for innovators in wearable technology, medical devices, and advanced consumer electronics.

Size of Lithium Polymer Battery

Didn't find your size? Click to Start a Custom Design.

Unleash your creativity. We build the custom-shaped battery that fits your vision, not the other way around.

Applications Powered by Hanery LiPo Batteries

The versatility of lithium polymer technology makes it the ideal choice for a vast range of industries. We have deep expertise in providing custom solutions for:

Watch Batteries Banner

Wearable Technology

Smartwatches, rings, glasses, e-textiles, and medical patches.

Smartphones Batteries

Consumer Electronics

Smartphones, tablets, drones, power banks, and portable audio.

Handheld Diagnostic Instruments Batteries

Medical Devices

Portable monitors, diagnostic tools, and drug delivery systems.

Professional Power Tools Batteries

Professional Tools & Instruments

High-discharge batteries for power tools, and reliable packs for portable diagnostic and surveying equipment.

Wireless Security Cameras Batteries

Smart Home & IoT

Wireless sensors, smart locks, and other connected devices.

Barcode Scanners & Mobile Computers Batteries

Asset Tracking & Logistics

Durable, long-life batteries for GPS asset trackers, barcode scanners, and mobile computers.

Lithium Polymer (Li-Po) vs. Lithium-Ion: Why Choose Hanery LiPo?

Feature Li-Po (Pouch) Li-ion (Cylindrical) Hanery LiPo Advantage
Energy Density High (Space-efficient) Very High (Std. cells) Up to 200Wh/kg in ultra-slim & customized form factors.
Custom Shapes Extremely Flexible Rigid Cylindrical 100% bespoke sizing (Curved, Round, Ultra-thin) for unique space.
Weight ~30% Lighter Heavier (Steel Can) Optimized for drones & wearables where every gram counts.
Discharge Rate Superior (Up to 50C+) Moderate (3C – 10C) High-drain cells designed for peak industrial power loads.
Safety Flexible Pouch Internal Pressure Integrated Smart BMS with multi-layer safety pouch design.
Read our [Comparing LiPo and Li-ion Batteries] guide to find the best power solution for your project.

Why Choose Hanery for Your Lithium Polymer Batteries?

Polymer lithium-ion is the technology of choice for modern, compact electronics. We are the experts who shape it to your needs.

Unmatched Design Freedom

Our core expertise is creating LiPo batteries in custom shapes and sizes—curved, L-shaped, ultra-thin—to fit any design.

Maximum Energy Density

We utilize advanced materials to pack the most mAh capacity into the lightest and slimmest possible profiles.

Proven Safety & Reliability

Our LiPo cells are engineered with multi-layered safety features and undergo rigorous testing to meet all global standards.

High-Volume Manufacturing

Our state-of-the-art, automated facilities ensure exceptional consistency and quality, from thousands to millions of units.

Wide Range of Capabilities

From low-power wearables to high-discharge drone batteries, our expertise covers the full spectrum of LiPo applications.

Expert Engineering Partnership

We work as an extension of your team, providing DFM feedback and co-engineering the perfect power solution.

Get Your Custom LiPo Batteries in Bulk, Step-by-Step

In-Depth Consultation

We analyze your device's design, power budget, and performance targets.

Engineering & 3D Modeling

We provide a comprehensive proposal with 3D models of the custom cell and a transparent wholesale quote.

Rapid Prototyping & Validation

We produce functional samples for you to test for fit, performance, and cycle life in your actual hardware.

Refinement & Certification Management

We refine the design based on your testing and manage all required global safety certifications (UL, IEC, CE, etc.).

High-Volume Automated Production

Your bulk order is manufactured with micrometer-level precision and consistency.

Global Logistics & Compliant Shipping

We manage the entire logistics process, ensuring your batteries are shipped safely and on schedule worldwide.

Lithium Polymer Battery Tips

Custom LiPo Batteries FAQ

Yes. As a specialized manufacturer, Hanery excels in customizing battery dimensions and shapes to fit specific device housings. We support the production of ultra-thin (down to 0.5mm), curved, round, and L-shaped Li-po cells, ensuring maximum space utilization for your B2B design projects.

We provide a wide range of discharge capabilities. For standard consumer electronics, we offer 1C-5C cells. For high-performance applications like drones or power tools, we manufacture high-rate LiPo batteries with continuous discharge rates of 25C to 50C, and burst rates up to 100C, while maintaining low internal resistance.

Safety is our manufacturing priority. All Hanery LiPo batteries are designed to meet global standards and can be provided with UN38.3, MSDS, CE, RoHS, and IEC62133 certifications. For specific North American or European markets, we also support the process for UL1642 and KC certifications upon request.

Under standard charging and discharging conditions (0.2C, 25°C), our high-quality Li-polymer cells typically maintain over 80% of their initial capacity after 500 cycles. For specific requirements, we can optimize the electrolyte and electrode materials to achieve 1000+ deep cycles.

Absolutely. Every custom LiPo battery pack from Hanery can be equipped with a tailored PCM or Smart BMS. Our protection circuits provide essential safety features: over-charge protection, over-discharge protection, short-circuit protection, and over-current monitoring.

For custom cell development, the prototyping phase usually takes 15-20 days. Once the design is finalized and approved, mass production typically takes 30-40 days, depending on the order volume and material availability, ensuring strict adherence to our quality control protocols.

Yes. While standard LiPo batteries operate between -20°C to 60°C, Hanery provides specialized wide-temperature solutions. We manufacture low-temperature cells that maintain performance at -40°C and high-temperature resistant cells designed for industrial environments up to 80°C.

The primary difference lies in the electrolyte. Li-polymer uses a solid or gel-like polymer electrolyte, allowing for a flexible, pouch-style aluminum foil packaging. This makes LiPo batteries lighter, thinner, and customizable in shape compared to the rigid metallic casings of traditional cylindrical Li-ion cells. I guess you want to read more about: Comparing LiPo and Li-ion Batteries: Which Is Right for You?

We implement a multi-stage quality management system. This includes IQC (Incoming Quality Control) for raw materials, IPQC (In-Process Quality Control) during electrode coating and cell assembly, and 100% OQC (Outgoing Quality Control) involving capacity grading, internal resistance testing, and safety aging tests.

To maintain long-term stability and prevent gas generation (puffing), LiPo batteries should be stored at 3.7V – 3.85V (approx. 40-50% SOC) in a cool, dry environment (15°C – 25°C). We recommend a maintenance charge every 3 months for bulk inventory to prevent over-discharge and ensure cell longevity.

Scroll to Top

Request Your Quote

Need something helped in a short time? We’ve got a plan for you.