The Reliable Power Behind Every Critical Calculation
Hanery is a leading B2B manufacturer of long-life, slim, and highly reliable polymer lithium-ion batteries for advanced graphing, financial, and scientific calculators. We engineer the dependable, rechargeable power that ensures students and professionals have the tools they need for exams, fieldwork, and complex problem-solving.
Safety
Low Self-Discharge
Long Lifespan
Lightweight
Your Expert Calculator Battery Manufacturer in China
For a tool where accuracy and readiness are essential, partner with a battery manufacturer that delivers unwavering reliability.
Months of Standby Life
Our low self-discharge cells ensure the calculator is ready for use, even after being stored in a backpack for weeks.
Long Operational Runtimes
High-energy-density cells designed to power the calculator through hundreds of hours of complex calculations.
Ultra-Slim & Custom Shapes
We specialize in manufacturing extremely thin cells that enable sleek, portable calculator designs.
Stable Voltage for Accuracy
Provides a consistent voltage platform, ensuring processor and screen stability for accurate results.
Convenient USB Charging
Our batteries are designed for easy and convenient recharging via standard USB ports.
Certified for Exam Use
We can design batteries to be compliant with the requirements of standardized testing organizations.
Custom Calculator Batteries as Your B2B Supplier
Hanery is your specialist partner for custom polymer batteries, meticulously engineered for the precision-driven world of advanced calculators. We understand that for a student heading into an exam or an engineer in the field, a dead battery is not an option. Our expertise lies in creating highly stable, space-optimized power solutions that deliver exceptional standby and operational life, providing the absolute dependability that your customers require.
Wholesale Calculator Battery Capabilities
We provide custom power solutions for a wide spectrum of computational devices.
Hewlett-Packard Calculators Batteries
Texas Instruments Calculators Batteries
Casio Calculators Batteries
Sharp Calculators Batteries
Worried About a Battery Dying Right Before a Big Exam?
Deliver peace of mind. Our low self-discharge, long-life batteries are engineered to be ready whenever they’re needed.
Customized Options for Your Calculator Batteries
We engineer every detail for reliability and a seamless user experience.
Low Self-Discharge Chemistry
Our specialized chemistry minimizes passive power loss, ensuring the calculator holds its charge for months.
Ultra-Thin Profiles
We can manufacture cells with a thickness of less than 3mm, enabling incredibly sleek and pocketable designs.
Optimized Capacity-to-Size Ratio
We engineer the cell to provide the longest possible runtime in the most compact form factor.
Integrated Miniature PCM
We incorporate a compact Protection Circuit Module for safety without adding significant bulk.
Simple & Reliable Connectors
We use high-quality, durable micro-connectors for easy and robust assembly.
Full OEM Integration
We provide custom labeling for seamless integration into your product line.
Get Your Batteries in Bulk, Step-by-Step
In-Depth Consultation
We analyze your calculator's power consumption (active/standby), target runtime, and form factor.
Engineering & Proposal
We provide a comprehensive proposal with detailed specifications and a transparent wholesale quote.
Prototyping & Performance Testing
We produce functional samples for you to validate for fit, runtime, and long-term standby performance.
Certification Management & Approval
We manage all global safety and consumer electronics certifications (UL, IEC, CE, etc.).
High-Volume Automated Production
Your bulk order is manufactured with exceptional consistency in our advanced facility.
Global Logistics & Compliant Shipping
We manage the entire logistics process, ensuring your batteries are shipped safely and on schedule worldwide.
FAQ for Calculator Batteries
A: We use a combination of a high-density cell and a specialized low self-discharge chemistry. This, combined with the low power draw of modern calculator processors, results in extremely long standby and use times.
A: For a new custom design, our MOQ typically starts at 20,000 to 50,000 units, reflecting the needs of the consumer electronics market.
A: While the final device approval rests with the testing agency, we can design the battery to be non-removable and meet all the underlying electronic safety standards required to support your product’s certification for exam use.
A: We can produce ultra-thin cells well under 3.0mm, with some designs approaching 2.0mm. This allows for extremely sleek and pocket-friendly product designs.
A: Our calculator batteries are designed for a very long product lifespan, typically specified to retain high capacity after 300-500+ charge cycles, which translates to many years of academic or professional use.
A: After the design is finalized, the lead time for the first batch of prototypes is generally 4-6 weeks.
A: Yes, a PCM is essential for the safety of any rechargeable lithium-ion battery. We use a highly efficient, compact PCM with a very low quiescent current to prevent it from draining the battery.
A: We design the battery to be fully compatible with standard 5V charging via a USB (often Mini-B or Micro-B, or USB-C on modern devices) port on the calculator.
A: Yes, we manage the entire certification process to ensure your product’s battery meets all required standards for your target markets, including CE, UL, IEC, and UN38.3.
A: Please provide the target dimensions (T x W x L), required minimum runtime (hours) or capacity (mAh), voltage (3.7V), and your estimated annual volume.