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- Model: INR18650-30Q
Original Samsung INR18650-30Q 3000mAh 15A High-Drain Rechargeable Li-ion Battery
Renowned as one of the most reliable and versatile 18650 cells on the market, the original Samsung INR18650-30Q delivers a perfect balance of high capacity (3000 mAh) and strong current output (15A continuous discharge). Built in the standard 18650 form factor, it features low internal resistance and outstanding voltage stability under load, making it a top choice for battery pack builders, power tools, and high-performance electronics.
- Battery Type / Size: Li-ion 18650 (Rechargeable)
- Nominal Capacity: 3000 mAh (Min. 2950 mAh)
- Nominal Voltage: 3.6V - 3.7V (Full Charge: 4.2V)
- Discharge Rating: 15A Continuous (up to 20A+ under temperature-controlled conditions)
- Terminal Type: Flat Top
- Applications: Power tools, electric bikes/scooters, high-lumen flashlights, medical equipment, power banks, and custom DIY spot-welded battery packs.
Long Product Description (Detailed Listing)
Original Samsung INR18650-30Q 3000mAh 15A High-Drain 18650 Lithium-Ion Cell
The Samsung INR18650-30Q is a benchmark high-drain cell designed by Samsung SDI. Offering a high energy density of 3000 mAh nominal capacity alongside a proven 15A continuous discharge capability, the 30Q is widely celebrated for its consistency, long cycle life, and low thermal output under load.
Whether used individually or welded into multi-cell series/parallel configurations (e.g., 10S3P, 13S4P e-bike batteries), the Samsung 30Q provides stable operating voltages with minimal voltage sag. Its balanced performance profile makes it ideal for applications requiring sustained current draw without sacrificing total capacity.
Key Features & Highlights:
- Optimal Balance of Power & Capacity: Combines a full 3000 mAh capacity with 15A continuous current, maximizing device runtime and power delivery.
- Low Internal Resistance: Ensures efficient power transfer, reduced heat generation during operation, and consistent performance over hundreds of cycles.
- Proven Reliability: Manufactured under strict Samsung SDI quality control standards for maximum safety and longevity.
- Wide-Ranging Utility: Excellent selection for power tools, e-mobility battery packs, portable power stations, LED flashlights, and custom hardware engineering.
Technical Specifications:
| Parameter | Value |
|---|---|
| Brand / Model | Samsung SDI / INR18650-30Q |
| Chemistry | Li-ion (NMC) |
| Form Factor | 18650 |
| Nominal Capacity | 3000 mAh |
| Minimum Capacity | 2950 mAh |
| Nominal Voltage | 3.60V |
| End-of-Charge Voltage | 4.20V ± 0.05V |
| Discharge Cut-off Voltage | 2.50V |
| Max Continuous Discharge Current | 15A |
| Standard Charge Current | 1.5A (0.5C) |
| Fast Charge Current | 4.0A |
| Internal Resistance (AC 1kHz) | ≤ 26 mΩ |
| Dimensions | Diameter: 18.33 mm | Height: 64.85 mm |
| Weight | Approx. 48.0 g |
| Terminal Construction | Flat Top |
Safety & Usage Notice:
- Li-ion cells are unprotected industrial batteries.
- Must be used with a suitable BMS (Battery Management System) or protected charging circuit.
- Do not short-circuit, overcharge above 4.2V, or over-discharge below 2.5V.
- Store in a cool, dry place away from direct heat or ignition sources.





