Highly Rated｜ Other Products ｜Reliance RS40 21700 4000mAh 70A Tabless Battery

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
Reliance RS40 21700 4000mAh 70A Battery Datasheet
Brand:RELIANCECategory:21700 BatteriesSKU:RELIANCE-RS40