The Reliable, High-Density Core of Portable Power
Hanery is a leading B2B manufacturer of high-energy-density, fast-charging, and safety-certified polymer lithium-ion cells for the global power bank industry. We engineer the core battery technology that enables your brand to deliver slimmer, faster, and more reliable portable power to consumers.
Safety
Low Self-Discharge
Long Lifespan
Lightweight
Your Expert Power Bank Battery Manufacturer in China
In the crowded power bank market, performance and safety are everything. Partner with a cell manufacturer that delivers a trusted, high-performance core.
Industry-Leading Energy Density
We utilize the latest materials to maximize mAh capacity, enabling higher-capacity power banks in smaller sizes.
Advanced Fast-Charging Cells
Our batteries are engineered to safely support modern high-speed input and output charging protocols (USB PD, QC).
Uncompromised Safety
Our cells are designed and rigorously tested to prevent swelling, overheating, and other hazards, meeting all global safety standards.
High Cycle Life & Durability
Built to withstand hundreds of charge cycles, ensuring a long and reliable product lifespan for the end-user.
Slim & Stackable Form Factors
We specialize in producing thin, flat cells that are ideal for creating sleek and compact power bank designs.
Massive Production Capacity
Our high-volume facilities are ready to supply millions of cells for your large-scale production runs.
Custom Power Bank Batteries as Your B2B Supplier
Hanery is your strategic partner for custom 3.7V polymer lithium-ion cells, meticulously engineered for the demanding power bank market. We understand that the cell is the heart of your product, defining its capacity, charging speed, and ultimate safety. Our expertise lies in delivering exceptionally consistent, high-density cells that provide the reliable foundation you need to build a market-leading power bank with confidence.
Wholesale Power Bank Battery Capabilities
We provide a wide range of cell platforms to meet the needs of any power bank design.
Anker Power Bank Batteries
Belkin Power Bank Batteries
Xiaomi Power Bank Batteries
RAVPower Power Bank
Want to Offer Faster Charging Without Compromising Safety?
Our advanced cell technology is engineered for high-speed performance with multi-layered safety built-in.
Customized Options for Your Power Bank Batteries
We provide cell-level engineering to give your power bank a competitive edge.
Capacity & Energy Density
We work with you to select or develop the highest possible capacity cell for your target product size.
Fast-Charging Formulation
We can customize the cell's chemistry and structure to safely support specific charging protocols (e.g., 22.5W, 45W, 65W).
Custom Dimensions
While many power banks use standard cell sizes, we can create custom-sized cells for unique industrial designs.
Optimized Cycle Life
We can engineer the cell to retain high capacity after 300-500+ cycles, ensuring a long product lifespan.
Low-Temperature Performance
We offer formulations that perform better in cold conditions, a key feature for outdoor-focused power banks.
Full Traceability
Every cell is marked for full traceability, ensuring quality control and accountability throughout your supply chain.
Get Your Batteries in Bulk, Step-by-Step
In-Depth Consultation
We analyze your power bank's target capacity, charging speed, form factor, and production volume.
Cell Selection & Proposal
We recommend the optimal standard cell or propose a custom design with a transparent wholesale quote.
Prototyping & Performance Validation
We provide functional cell samples for you to build into your PCBA and enclosure for rigorous testing.
Certification & Mass Production Approval
We manage all required global cell certifications (UL 1642, IEC 62133, etc.) and receive your final approval.
High-Volume Automated Production
Your bulk order of millions of cells is manufactured with exceptional consistency.
Global Logistics & Compliant Shipping
We manage the entire logistics process, ensuring your cells are shipped safely and compliantly worldwide.
FAQ for Power Bank Batteries
A: We can manufacture single polymer cells with capacities exceeding 10,000mAh. Most high-capacity power banks use two or more of these cells in parallel.
A: Yes, we can engineer specific fast-charging cells with very low internal resistance that can form the basis of a 100W PD power bank system when correctly integrated with a high-quality PCBA.
A: For our standard, high-volume cell models, the MOQ is typically 20,000 to 50,000 units. For fully custom cells, the MOQ will be higher.
A: We use a combination of high-quality, stable materials, precise electrolyte formulation, a controlled formation process, and stringent aging protocols. This significantly minimizes gas generation and the risk of swelling over the battery’s life.
A: Our cells are typically designed to retain over 80% capacity after 300-500 charge cycles, which is the industry standard for high-quality consumer power banks.
A: Our cells are designed to pass all critical global safety standards, including UL 1642, IEC 62133, GB 31241, and UN38.3 for transportation.
A: For standard models, after order confirmation, the lead time for mass production is generally 4-6 weeks, depending on our production schedule and material availability.
A: Our core focus is manufacturing the high-quality battery cell itself. However, we can recommend trusted PCBA and assembly partners to provide you with a full turnkey solution.
A: Yes. All our cells undergo a rigorous grading process. For multi-cell applications, we provide cells that are tightly matched in capacity and internal resistance to ensure optimal performance and longevity of the final pack.
A: Please provide the target capacity (mAh), voltage (3.7V), required cell dimensions (T x W x L), any fast-charging requirements (input/output Watts), and your estimated annual volume.