Samsung INR 21700-50S — 5000mAh High-Capacity Li-ion Battery
The Samsung INR 21700-50S is a premium cylindrical lithium-ion cell engineered for applications demanding maximum energy density and reliable sustained discharge. Whether you're building high-performance battery packs, powering robotics, or upgrading industrial equipment, the 50S delivers consistent output you can count on.
Key Specifications
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Chemistry: Lithium-ion (INR / NMC)
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Nominal Voltage: 3.6V
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Capacity: 5000mAh (5.0Ah)
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Format: 21700 Cylindrical
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Continuous Discharge Current: 9.8A (0.2C)
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Maximum Discharge Current: 25A
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Charging Voltage: 4.2V
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Standard Charge Current: 1.45A (0.29C)
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Operating Temperature: Charge: 0°C to 45°C | Discharge: -20°C to 60°C
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Cell Weight: ~68g
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Dimensions: 21mm (dia) × 70mm (height)
Why Choose the Samsung 50S?
- ✅ Highest capacity in the 21700 format — more runtime per cell
- ✅ Samsung SDI quality — consistent cell-to-cell performance and safety
- ✅ Wide temperature range — reliable in demanding environments
- ✅ Ideal for pack builders — uniform discharge curve for balanced packs
Typical Applications
- DIY and custom Li-ion battery packs
- UPS and backup power systems
- Robotics and automation equipment
- High-drain portable electronics
- E-bikes and electric mobility
Genuine Samsung SDI cell. Sold individually. Always use a compatible BMS and charger for safe operation.
