Key Features
Long-Lasting Power: 5000mAh capacity supports extended use between charges.
Extreme Output Capability: Delivers up to 70A continuous discharge for demanding devices.
Balanced Performance: INR chemistry provides stability, safety, and strong energy delivery.
Rugged Construction: Steel shell with built-in pressure relief protection.
Versatile Applications: Suitable for high-drain battery packs and professional-grade equipment.
Overview
The Reliance RS50 is a powerful 21700 lithium-ion battery designed for applications that require both high capacity and extreme current output. With a 5000mAh nominal capacity and a 70A continuous discharge rating, this flat top cell delivers reliable, consistent performance. Its durable design and advanced chemistry make it an excellent choice for demanding power systems.

Applications / Uses
High-power battery pack builds
Electric tools and transport devices
Industrial and professional equipment
High-current electronic systems
Custom power solutions

Specifications
Manufacturer    Reliance
Model    RS50
Cell Size    21700
Positive Terminal    Flat Top
Nominal Capacity    5000mAh
Minimum Capacity    4850mAh
Continuous Discharge    70A
Pulse Discharge (5s)    140A
Nominal Voltage    3.6V
Maximum Voltage    4.2V
Discharge Cut-off Voltage    2.5V
Protected    No (Unprotected)
Standard Charge Current    2500mA
Fast Charge Current    5000mA
Cycle Life    ≥80% capacity after 500 cycles
Operating Temperature    -30°C to 75°C (Discharge) / 0°C to 60°C (Charge)
Rechargeable    Yes
Approx. Dimensions    21.0mm x 70.2mm
Approx. Weight    66g