OEM Custom Phosphor Bronze and Steel Battery Contacts for AG13, CR2032, CR2450 Coin Cells - China Suppliers Factory Manufacturers, Factory
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Shenzhen Sunmy Hardware Co.,Ltd. is a leading manufacturer specializing in precision engineering for electronic components. Our custom battery contacts are expertly crafted from high-grade phosphor bronze and spring steel using advanced stamping techniques. These components are meticulously designed to provide reliable electrical connectivity, ensure secure battery retention, and withstand fatigue in demanding applications. We offer fully customizable solutions for standard coin cells like AG13/LR44, CR2032, and CR2450, ensuring perfect integration into your product's design.
From consumer electronics and medical devices to industrial sensors and toys, our custom-stamped battery contacts provide a robust and cost-effective connection solution. Leverage our extensive experience and powerful development capabilities to create a tailored component that meets your exact performance and dimensional requirements.
Process & Manufacturing Insights
We utilize state-of-the-art sheet metal & stamping technology to produce our custom battery contacts. This process begins with precise die design and fabrication, leveraging our internal capabilities for custom tooling. Material selection is critical; we offer both phosphor bronze for excellent conductivity and corrosion resistance, and high-tensile spring steel for superior spring characteristics and structural strength, often coated for enhanced performance.
High-speed, multi-stage stamping presses accurately cut, bend, and form the complex geometry of the battery contact from continuous metal strips. This progressive stamping approach guarantees exceptional consistency, tight tolerances, and high production efficiency, even for large volumes. Our post-processing options include precise nickel plating, gold plating, or other surface treatments for optimal solderability, corrosion protection, and contact reliability. Every step is overseen by our rigorous quality control system to ensure error-free products.
Key Specifications
Parameter
Description
Compatible Battery Types
AG13 (LR44), CR2032, CR2450, and other coin cells upon request
Fully customizable, typically ranging from 0.1mm to 0.5mm
Dimensional Tolerance
Precision level, down to ±0.01mm to ±0.05mm (customized to design)
Surface Finish
Nickel Plating, Gold Plating, Silver Plating, Tin Plating
Mounting Type
Through-Hole (THT), Surface Mount (SMT), Snap-in, or customized designs
Quality Control
Comprehensive inspections (100% full inspection option), SPC, FAI, IPQC, FQC
Customization
Full range: material, size, shape, spring force, mounting, plating, packaging
Certifications
ISO9001, IATF16949, ROHS
Main Features & Advantages
Exceptional Conductivity & Reliable Connection: Utilizing high-purity materials and optimized designs to ensure minimal resistance and a stable electrical path.
Superior Spring Strength & Fatigue Resistance: Critical for maintaining secure contact over numerous battery replacement cycles, preventing power loss or intermittent issues.
Precision Engineering with Tight Tolerances: Our advanced stamping process and custom tooling ensure every contact meets strict dimensional requirements for flawless assembly.
Full Customization Capabilities: From initial concept and DFM review to prototyping and mass production, we provide tailored solutions for material, plating, mounting, and packaging.
State-of-the-Art Production Facility: Our company operates multiple advanced, high-speed stamping presses and a dedicated tool & die workshop, ensuring rapid turnaround and consistent quality.
Commitment to Quality & Compliance: With 20 years of experience, we adhere to strict quality standards and offer comprehensive inspections to guarantee your complete satisfaction.
Technical FAQ
1
Q1: What is your Minimum Order Quantity (MOQ) for custom battery contacts?
Our MOQ is flexible and can be tailored to your specific project needs. While we handle high-volume production, we are also equipped to support smaller initial orders or prototyping requirements. We are committed to finding a production solution that aligns with your development stage.
2
Q2: What is the typical lead time for custom tooling and production?
Custom tooling design and fabrication generally takes between 7 to 15 days, depending on complexity. For mass production, we can typically deliver within 15 to 30 days after sample approval and receipt of the deposit. We provide clear, transparent communication at every stage.
3
Q3: How do you assist with the design optimization for a custom contact?
Our expert engineering team provides comprehensive Design for Manufacturability (DFM) review and assistance. We can optimize your initial designs for efficient stamping, suggest the best material and plating options based on your application, and even help in creating a new concept from scratch to minimize cost and maximize performance.
4
Q4: Can you provide samples for testing and evaluation?
Yes, we provide prototypes and samples for your testing and evaluation before proceeding to full-scale production. This allows you to verify form, fit, and function, ensuring the final component meets all your performance criteria. For common designs, sample lead time is typically 3-5 days.
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Custom Phosphor Bronze and Steel Stamping Battery Contacts for AG13, CR2032, and CR2450 Coin Cells
Get a Fast, Technical Quote & Free DFM Review
Don't let tolerance stack-up delay your product launch. Submit your project details, and our engineering team will evaluate your design for manufacturability before the first cut.
Frequently Asked Questions
1
What materials are best suited for custom battery contacts in high-humidity environments?
For high-humidity or corrosive environments, we recommend phosphor bronze (C5191 or C5210) as the base material combined with a nickel or gold plating finish. Phosphor bronze offers excellent inherent corrosion resistance, and the plating layer provides an additional barrier against oxidation, ensuring long-term reliability in demanding conditions such as outdoor sensors or marine electronics.
2
What is the difference between phosphor bronze and spring steel for battery contacts?
Phosphor bronze excels in electrical conductivity and corrosion resistance, making it ideal for applications where stable electrical performance is the top priority. Spring steel (such as SUS301 or 65Mn) offers superior tensile strength and fatigue resistance, making it the preferred choice when the contact must endure a high number of insertion/removal cycles or requires a strong, consistent spring force to hold the battery firmly in place.
3
Can you manufacture battery contacts compatible with both SMT and through-hole PCB assembly?
Yes, absolutely. We specialize in custom designs and can engineer battery contacts with SMT (Surface Mount Technology), THT (Through-Hole Technology), snap-in, or any other mounting configuration required by your PCB layout. Our engineering team will work directly with your design files to ensure perfect compatibility with your assembly process.
4
What quality certifications does Shenzhen Sunmy Hardware hold?
Shenzhen Sunmy Hardware Co., Ltd. holds ISO9001 (Quality Management System), IATF16949 (Automotive Quality Management), and RoHS compliance certifications. Our quality system encompasses First Article Inspection (FAI), In-Process Quality Control (IPQC), Final Quality Control (FQC), Statistical Process Control (SPC), and optional 100% full inspection for critical components.
5
How do I submit my design for a custom battery contact quote?
You can submit your project by filling out the inquiry form above. Please include your 2D/3D drawings (DXF, DWG, STEP, or PDF format), required material and plating specifications, target quantities, and any specific performance requirements. Our engineering team will conduct a free DFM (Design for Manufacturability) review and respond with a detailed technical quote within 24 hours on business days.
6
What plating option provides the best solderability for battery contacts?
Tin plating is widely regarded as the most cost-effective option for excellent solderability and is the standard choice for most PCB-mounted battery contacts. For applications requiring the highest reliability, low contact resistance, and superior corrosion protection — such as medical devices or precision instruments — gold plating is the recommended choice. We can advise on the optimal plating thickness and type based on your specific application and budget requirements.
