18650/AA/AAA Battery Steel Shells - 3.7V Pre-Nickel Plated Cylindrical Lithium Battery Accessories with 0.5-2μm Coating
Price:
Negotiable
MOQ:
50pcs
Delivery Time:
5-7working days
Brand:
XWELL
Product Description
Product Overview
Our pre-nickel plated cylindrical battery steel shells are essential accessories for 3.7V new energy lithium batteries, available in 18650, AA, and AAA configurations. Manufactured from high-grade cold-rolled steel with advanced nickel-plating technology, these shells deliver structural integrity, corrosion resistance, and reliable electrical performance for protecting battery cores and ensuring stable operation across various applications.
Key Features
- Pre-Nickel Plated Surface: Uniform nickel coating (0.5-2μm thickness) enhances solderability and corrosion resistance for long-term electrical contact stability
- High-Strength Material: SPCC cold-rolled steel provides excellent hardness (HV ≥ 180) and impact resistance to prevent core deformation
- Precision Dimensional Control: CNC processing ensures tight tolerance (±0.02mm) for perfect compatibility with battery cores and aluminum-plastic films
- Leak-Proof Design: Smooth edges and consistent wall thickness optimize sealing performance during battery assembly
- 3.7V Voltage Compatibility: Specifically engineered for 3.7V cylindrical lithium batteries in mainstream new energy devices
Technical Specifications
| Parameter | 18650 Model | AA Model | AAA Model | Standard |
|---|---|---|---|---|
| Outer Diameter | 18.0±0.02mm | 14.5±0.02mm | 10.5±0.02mm | - |
| Inner Diameter | 17.2±0.02mm | 13.7±0.02mm | 9.7±0.02mm | - |
| Height | 65.0±0.05mm | 50.5±0.05mm | 44.5±0.05mm | - |
| Wall Thickness | 0.4±0.01mm | 0.4±0.01mm | 0.35±0.01mm | - |
| Material | SPCC Cold-Rolled Steel | SPCC Cold-Rolled Steel | SPCC Cold-Rolled Steel | SPCC |
| Nickel Plating Thickness | 0.5-2μm | 0.5-2μm | 0.5-2μm | RoHS Compliant |
| Hardness | HV ≥ 180 | HV ≥ 180 | HV ≥ 170 | ASTM E384 Standard |
Application Areas
These battery steel shells are engineered for 3.7V cylindrical lithium batteries used in:
- Consumer Electronics: Power banks, Bluetooth headsets, digital cameras, portable speakers, smart wearables
- Household Appliances: Flashlights, remote controls, electric toothbrushes, small kitchen appliances
- New Energy Devices: Electric toys, portable medical equipment (blood glucose meters, nebulizers)
- Industrial Applications: Emergency lighting, small-scale energy storage battery packs, security devices
Why Choose Our Battery Steel Shells?
With years of industry expertise, we provide trustworthy solutions and one-stop procurement of experimental materials. Our reliable quality is backed by sufficient factory inventory and direct supply chain management.
We offer customization services for non-standard sizes, plating thickness variations, and specialized surface treatments. Contact us for samples and comprehensive technical support!
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
GUANGDONG XWELL TECHNOLOGY CO., LTD.
Location
Room 316, Building 3, No. 801, Qiaoxing Avenue, Xiaoluo Village, Shatou Street, Panyu District, Guangzhou
Contact Person
Sammy Qin