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Custom Ring Batteries: Powering the Future of Wearable Tech
Hanery is a leading China-based manufacturer specializing in ultra-compact, custom-shaped polymer lithium-ion batteries for smart rings. We provide reliable, high-density power solutions that bring your most innovative wearable designs to life.
Safety
Low Self-Discharge
Long Lifespan
Lightweight
Your Premier Ring Battery Manufacturer in China
Expert Custom Solutions
We design and manufacture custom ring batteries tailored to your unique size, shape, and performance requirements.
Competitive Wholesale Pricing
Benefit from our direct-from-factory pricing for your bulk and wholesale ring battery orders.
Experienced R&D Team
Our engineers possess years of experience in miniaturization and polymer battery technology.
Proven Industry Track Record
Extensive experience as a trusted supplier for innovative wearable technology brands.
Qualified Free Samples
Test our quality and performance with free samples for your qualified commercial projects.
Rapid Quotation & Support
Receive fast, professional quotes and dedicated technical support from our expert team.

Specializing in Custom Ring Batteries as Your Expert Supplier
Hanery is your expert supplier for custom polymer lithium-ion batteries specifically engineered for smart rings. We understand the unique challenges of this application, from extreme miniaturization and curved designs to balancing power density with safety. Our mission is to provide a reliable, high-performance power source that seamlessly integrates with your innovative wearable products.
Wholesale Smart Ring Batteries From Hanery

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Have a Complex Design Challenge?
Let’s engineer the perfect power solution for your smart ring together.
Customize Your Ring Batteries with a Leading Chinese Manufacturer
Custom Shapes & Sizes
We develop arc-shaped, curved, and ultra-thin batteries (e.g., under 2mm thick) to fit perfectly within your ring's housing.
Optimized Capacity
Our engineers work to maximize mAh capacity within the smallest possible footprint, ensuring longer runtime for your device.
High Energy Density
We utilize advanced materials to achieve high energy density, delivering more power without increasing size or weight.
Miniature & Flexible Tabs
We design ultra-small and flexible connection tabs (positive/negative terminals) for complex and space-constrained internal layouts.
Low Self-Discharge Chemistry
Our batteries are formulated for low self-discharge, a critical feature for consumer wearables that may sit idle between uses.
Integrated Safety Circuits
We can integrate miniature protection circuit modules (PCMs) to safeguard against over-charge, over-discharge, and short-circuits.
Get Your Ring Batteries in Bulk, Step-by-Step
Our streamlined process makes sourcing your custom ring batteries simple and transparent.
Consultation & Requirement Analysis
We start by discussing your technical specifications, application needs, and target volume.
Design & Engineering Proposal
Our team provides a detailed technical proposal with drawings, timelines, and a transparent wholesale quotation.
Rapid Prototyping & Validation
We manufacture and deliver pre-production samples for you to test and validate within your smart ring design.
Feedback & Final Approval
We refine the design based on your feedback and get your final sign-off before commencing mass production.
Scalable Mass Production
Your bulk order is manufactured in our advanced facility under strict quality control protocols.
Global Logistics & Delivery
We package your batteries securely and manage the entire global shipping process to your doorstep.
6 Key Benefits From Your Ring Battery Manufacturer
Partnering with Hanery provides more than just a component; it provides a competitive edge.
Accelerated Time-to-Market
Our efficient prototyping and manufacturing processes help you launch your product faster.
Enhanced Product Reliability
Rigorous quality control significantly reduces the risk of field failures, protecting your brand's reputation.
Competitive Advantage
A superior, longer-lasting battery makes your smart ring more appealing to end-users.
Simplified Supply Chain
As your end-to-end manufacturer and supplier, we simplify your procurement process.
Expert Technical Partnership
Gain direct access to our experienced battery engineers throughout your product development cycle.
Scalable Growth Support
Our factory is ready to scale production as your market demand grows, supporting your long-term success.
FAQ For Custom Ring Batteries
Our MOQ for custom ring batteries typically starts from 50,000 to 100,000 units, depending on the complexity of the design and tooling requirements. However, we are committed to supporting innovative projects, so please contact us to discuss your specific volume needs.
We specialize in extreme miniaturization. We can manufacture ultra-thin batteries with a thickness under 2.0mm and create curved or arc-shaped cells to fit compact ring designs. The final dimensions depend on the required capacity and your specific mechanical constraints.
The lead time for initial prototypes is typically between 4 to 6 weeks after the design is finalized. This includes tooling setup, material preparation, and the initial sample production run.
Absolutely. Designing and manufacturing curved and arc-shaped polymer lithium-ion batteries is one of our core competencies for wearable applications like smart rings.
Safety is our top priority. We use high-quality, stable materials, incorporate multiple internal safety features, and can integrate a miniature Protection Circuit Module (PCM). All our designs undergo rigorous safety testing, including nail penetration, crush, and overcharge tests, to meet standards like IEC 62133.
We can design our ring batteries to meet your target cycle life requirements, typically ranging from 300 to 500+ cycles while retaining over 80% of the initial capacity. The final performance depends on the specific chemistry and usage conditions.
Yes, we provide full support for obtaining all necessary international certifications. We will manage the testing and certification process with accredited labs to ensure your final product is compliant for sale in your target markets worldwide.
This is the core of our engineering expertise. We use high-energy-density materials and advanced manufacturing techniques to maximize the active material volume within your given dimensions, ensuring we deliver the highest possible mAh capacity for the smallest footprint.
To provide an accurate quote, please share your required dimensions (thickness, width/diameter, length/arc length), target capacity (mAh), voltage (typically 3.7V), continuous and peak discharge current, and estimated annual order quantity.
Yes, we can customize the battery tabs and integrate flexible printed circuits (FPCs) or micro-wires directly onto the cell during production. This simplifies your assembly process and saves valuable internal space.