Samsung 21700 Battery cells power your high-demand devices with the authentic Samsung INR21700-50E battery cell. This larger 21700 form factor delivers a massive 4,900mAh rated capacity and a stable 9.8A continuous discharge rate. It is the premier choice for custom battery pack builds, electric scooters, power tools, high-drain torches, and medical equipment requiring reliable, dense energy storage.
Technical Specifications:
• Model Name: INR21700-50E
• Manufacturer: Samsung SDI
• Cell Type: Lithium-ion Rechargeable (21700 Size)
• Nominal Capacity: 4,900mAh Typical (4,750mAh Minimum rated)
• Nominal Voltage: 3.63V (Charging Voltage: 4.2V)
• Max Continuous Discharge Current: 9,800mA (9.8A)
• Max Pulse Discharge Current: 14,700mA (14.7A Non-continuous)
• Cut-off Voltage: 2.5V
• Cycle Life: ≥ 500 cycles (≥ 80% capacity retention)
• Weight: 69.5g (Max)
• Dimensions: 21.25 mm (Max Diameter) × 70.80 mm (Max Height, with sleeve)
• Operating Temperature: Charge 0°C to 45°C | Discharge -20°C to 60°C
⚠️ CRITICAL LITHIUM-ION SAFETY WARNING:
Lithium-ion cells are highly volatile. Never carry loose cells in your pocket or bag; always store them in a protective plastic case. Do not short-circuit, overcharge, crush, or expose to high temperatures. The user must have expert knowledge of handling, charging, and discharging lithium-ion batteries safely before purchase.
Frequently Asked Questions (FAQ)
Q: Where can I buy genuine, authentic Samsung SDI battery cells in the UK?
A: Core Tech Essentials sources all electronic hardware components and high-capacity lithium-ion power cells directly through fully certified, authorized commercial wholesale distribution networks. Every cell matches official manufacturer datasheets.
Q: What is the difference between a flat-top and a button-top battery cell?
A: Industrial Samsung battery cells feature a flat-top connection terminal. Ensure your high-performance device, customized battery pack build, or specialized torch accepts standard flat-top cells before purchasing.
Q: How should I safely store loose 18650 or 21700 lithium-ion cells?
A: Never carry loose batteries in a pocket, backpack, or bag where metallic items like keys or coins can touch them. Always store battery cells inside a dedicated protective hard plastic case, away from extreme heat or damp conditions.
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