This is the 2mm variant of the 3 x 21700 Battery Holder with 21.2MM Bore Diameter in Battery Holders, Battery Pack Accessories & Holders. Available at ₹8.26 (₹7.00 + GST) with free shipping across India.
Looking for 21.2mm Battery? 3 x 21700 Battery Holder with 21.2MM Bore Diameter is available at Zbotic with fast shipping across India.
PRODUCT DESCRIPTION
This product is a cylindrical battery spacer/holder for 21700 x 3 battery cells. It is made of flame retardant ABS PC materials that resist high temperatures and cracks.
The holder has slots on the edge that allow you to combine it into various sizes and shapes of battery packs. You can weld nickel tabs to the pack and it will pass the vibration test without any other connectors. This makes your battery pack solid and reliable!
Please note that this holder does not include the 21700 Li-ION Batteries, which you have to purchase separately.
Note!! Every Single battery cell needs 2 Spacer for one up and one down buy it accordingly.
Features:
- There are slots on the edge of the holder to combine them into many different sizes and shapes of the battery pack.
- Application: Design for Radiating Complex Battery Packs. Safe and Stable, Perfect Build for eBike!
Advantages:
- Very simple to operation
- Very flexible, it is easy to assemble any type of battery packs
- Radiating during high rate discharge.
- Makes your battery pack Solid and Reliable
Specification:
| Model | 21700 radiating battery spacer |
|---|---|
| Material | ABS/PC (Remarkable Flame Retardant Plastic) |
| Bore Diameter [B] (mm) | 21.2 |
| Application | Design for Radiating Complex Battery Packs. Safe and Stable, Perfect Build for eBike |
| Shipping Weight | 0.03 kg |
| Shipping Dimensions | 7× 2.5 × 1 cm |
Package Includes:
1 x 3 x 21700 Battery Holder with 21.2MM Bore Diameter
3 x 21700 Battery Holder with 21.2MM Bore Diameter Overview
The 3 x 21700 Battery Holder with 21.2MM Bore Diameter is a cylindrical spacer designed to house three 21700 lithium-ion cells securely. Engineered from flame-retardant ABS/PC, it streamlines the assembly of radiating battery packs for applications like eBikes and custom power projects.
Key Features of 3 x 21700 Battery Holder with 21.2MM Bore Diameter
- Precision 21.2 mm bore fits standard 21700 cells snugly for reliable contacts
- Flame-retardant ABS/PC construction resists high temperatures and cracking
- Interlocking edge slots enable modular assembly into various pack shapes
- Vibration-tested design holds nickel-tab welded cells without additional connectors
- Safe and stable spacer ensures even heat dissipation across cell array
- Genuine product with fast shipping from Zbotic to anywhere in India
Applications and Use Cases
- Building high-performance eBike battery modules with improved thermal management
- DIY power banks and portable charger packs for camping or fieldwork
- Custom battery solutions for robotics, RC vehicles and electric scooters
- Prototyping multi-cell energy storage for solar backup systems
- Replacement spacers in repair kits for industrial power tools
How to Use 3 x 21700 Battery Holder with 21.2MM Bore Diameter
Insert each 21700 cell into the holder’s three bores, ensuring the positive and negative ends align consistently. Secure nickel tabs across the cells’ terminals and perform spot-welding directly on the spacer edges. Stack multiple holders via the edge slots to expand your pack, then test for continuity and vibration stability before final insulating or heat-shrinking.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
Do I need one or two spacers per cell?
Each 21700 cell requires two spacers—one at the top and one at the bottom—to maintain proper alignment and secure fit within the pack.
Can I directly weld nickel tabs onto this holder?
Yes. The flame-retardant ABS/PC material is formulated to withstand spot welding temperatures, allowing you to bond nickel strips without additional connectors.
Are the 21700 cells included with the holder?
No, the product includes only the battery spacers. You must purchase 21700 Li-ion cells separately and install them into the holder.
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Read More →Technical Specifications
| Size | 21.2mm |
|---|---|
| Package Quantity | 21700 pcs |
| SKU | AI3241 |
| Weight | 0.0 kg |
| Availability | Out of Stock |
Applications & Use Cases
The 3 x 21700 Battery Holder with 21.2MM Bore Diameter is a versatile battery holders used across a wide range of applications including electronics projects, DIY builds, prototyping, and educational experiments.
Common use cases:
- Integrating into a custom electronics project
- Learning and experimenting with circuits
- Replacing or upgrading components in existing setups
This product is ideal for electronics enthusiasts, engineers, and students.
Technical Tip: Always verify voltage and current requirements before connecting to your circuit. Check datasheets for detailed specifications and pin configurations.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
