Reliance RS40 21700 4000mAh 70A Tabless Battery
【RELIANCE】 Reliance RS40 21700 4000mAh 70A Tabless Battery Discover Something Different 21700 Batteries。
Pairs Well With
30-Day Price Guarantee
30-Day Price Guarantee
- Free 30-Day Returns
- Ships from our US warehouse (delivered in 3–7 days)
- Found a lower price? Let us know and we will match it!
1-Year + 180-Day Warranty
1-Year + 180-Day Warranty
So that you can buy with confidence, we provide a comprehensive warranty on every product.
- Warranty Period: This product comes with a 12-month standard warranty.
- Extended Warranty: Buy from our official website and you can register directly for the extended warranty, adding a further 180 days of coverage.
For more details, see the [Warranty Policy].
After your purchase, be sure to complete [Product Registration] to activate your warranty.
Free shipping
Free shipping
- Free Shipping:
All orders ship free of charge and usually arrive within 7 days. - 30-Day Return Guarantee:
If you are not satisfied, you may return or exchange the item within 30 days of delivery. - Shipping Protection (recommended):
For extra peace of mind, we recommend adding Seel Shipping Protection at checkout. With this coverage you can file a claim directly for shipping delays, loss or damage, and receive faster handling and stronger protection.
Please note that if shipping protection is not added, compensation is handled according to the carrier's rules and the applicable conditions. We are always happy to help with logistics inquiries, but the scope of compensation follows the carrier's policy.
For full details, please see the [Shipping Policy] and [Return Policy] pages.
Sign up and be the first to know when it lands
Features
Features
Specifications
Specifications
| Product Specifications | Value |
|---|---|
| Reliance RS40 21700 4000mAh 70A Tabless Battery | |
| Model Number | 10321162961206 |
| Age Range | 5+ |
| Shipping | Free shipping |
| Delivery Time | 1–5 days |
Reviews (418)
Reviews (418)
Customer Reviews
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details, nor do we have access to your credit card information.
Key Features
- Extended Runtime: 4000mAh capacity supports longer operating cycles.
- Exceptional Power Output: Up to 70A continuous discharge for demanding applications.
- Stable INR Chemistry: Designed for consistent output and thermal reliability.
- Industrial-Grade Build: Reinforced steel shell with integrated safety features.
- System Integration Ready: Ideal for professionally engineered battery packs.
Overview
The Reliance RS40 is engineered for applications where high current delivery and reliability are essential. Offering a 4000mAh nominal capacity and an industry-leading 70A continuous discharge rating, this 21700 lithium-ion cell is purpose-built for power-demanding systems. Its flat top, unprotected design allows seamless integration into advanced battery assemblies while maintaining consistent and dependable performance.
Applications / Uses
- Electric mobility platforms
- Power tools and industrial machinery
- High-output battery pack systems
- Commercial and industrial electronics
- Energy storage and power delivery solutions
Specifications
| Manufacturer | Reliance |
| Model | RS40 |
| Battery Size | 21700 |
| Positive Terminal | Flat Top |
| Nominal Capacity | 4000mAh |
| Minimum Capacity | 3900mAh |
| Max Continuous Discharge | 70A |
| Nominal Voltage | 3.6V |
| Maximum Voltage | 4.2V |
| Discharge Cut-off Voltage | 2.5V |
| Protection | No (Unprotected) |
| Standard Charge Current | 2500mA |
| Cycle Life | ≥80% capacity after 500 cycles |
| Operating Temperature | -20°C to 60°C (Discharge), 0°C to 45°C (Charge) |
| Rechargeable | Yes |
| Approx. Dimensions | 21.55mm x 70.3mm |
| Approx. Weight | 65g |
You may also like
-
$0 offNew -
$0 offNew -
$0 offNew -
$0 offNew -
$0 offNew -
$0 offNew
