Samsung 21700-50E 5000mAh 10A High-Power Li-ion Battery for Long Runtime Applications

Product Specifications:
Model: 21700
Rated Capacity: 5000mAh
Minimum Capacity: 4850mAh
Nominal Voltage: 3.7V
Internal Resistance: ≤14mΩ
Discharge Rate: 3C
Max Discharge Current: 10A
Weight: 64g (approx. 0.14 lbs)
Dimensions: 21.35mm x 70.3mm (0.84 in x 2.77 in)
Positive Electrode Material: NCM (Nickel Cobalt Manganese Oxide)
Charge Cutoff Voltage: 4.2±0.05V
Discharge Cutoff Voltage: 2.5V
Charge Termination Current: 0.02C
Charge Time:
5 hours (0.2C constant current, 4.2V constant voltage charging)
1 hour (1C constant current, 4.2V constant voltage charging)
Operating Temperature:
Charge: 0°C ~ 45°C
Discharge: -20°C ~ 60°C
Storage: -20°C ~ 45°C
Cycle Life: ≥90% capacity retention after 1000 cycles

🔥 Key Features:
✅ 5000mAh High Capacity for Extended Runtime
Delivers 30% longer battery life compared to standard lithium cells, reducing the need for frequent recharges.

✅ 10A Continuous Discharge for Stable Performance
Designed for consistent power output, ideal for long-running applications.

✅ Ultra-Low Internal Resistance ≤14mΩ
Enhances power efficiency, reducing heat buildup and prolonging device lifespan.

✅ 1000+ Charge Cycles for Long-Term Use
Premium NCM power cells maintain performance even after 1000+ cycles, making it cost-effective and durable.

✅ Advanced Safety Design with Built-in Pressure Valve
Explosion-proof safety vent prevents battery swelling, ensuring user safety.

✅ Eco-Friendly & Certified for Safety
Mercury-free, cadmium-free, and lead-free, complying with international safety standards for peace of mind.

🎯 Applications:
Samsung 21700-50E high-capacity lithium battery is widely used in various long-runtime applications, including:
🔹 Power Tools (Cordless drills, electric saws, screwdrivers)
🔹 Flashlights (Outdoor floodlights, tactical lights)
🔹 Electronic Instruments (Testing equipment, scientific devices)
🔹 Portable Fans (Handheld & USB-powered fans)
🔹 Massage Devices (Massage guns, fascia guns)
🔹 Bluetooth Speakers (Wireless audio systems)
🔹 Electric Vehicles (E-scooters, hoverboards)
🔹 Silicone Lamps (Creative and decorative lighting)

🚀 Power up your high-performance devices with Samsung 21700-50E Li-ion battery!