Samsung INR18650-30Q – High Capacity 18650
3000mAh with 15A CDR — one of Samsung’s most versatile 18650 cells. Popular choice for pack builders seeking a balance of runtime and power.
Technical Specifications
| Specification | Value |
|---|---|
| Format | 18650 |
| Nominal Capacity | 3000mAh |
| Nominal Voltage | 3.6V |
| CDR | 15A |
| Chemistry | INR NMC |
| Positive Terminal | Flat Top |
| Charge Voltage | 4.2V |
| Discharge Cutoff | 2.5V |
Safety Warning
Unprotected cell. Always use with a BMS. Never short-circuit or overcharge. Keep away from fire and extreme heat. Not for use in e-cigarettes or similar devices.
Cell Specification
| Item | Specification and comments |
|---|---|
| Cell model | Samsung SDI INR18650-30Q cylindrical Li-ion cell |
| Chemistry | Rechargeable lithium-ion (INR) cylindrical cell for power tools |
| Standard capacity | 3000mAh – nominal discharge capacity at 0.2C (600mA) to 2.5V after standard charge |
| Standard rated discharge capacity | ≈2900mAh at 10A discharge to 2.5V at 25°C (IEC61960 minimum 2.9Ah) |
| Nominal voltage | 3.6V |
| Energy (nominal) | ≈10.8Wh (3.6V × 3.0Ah) |
| Internal resistance | ≈26mΩ (AC 1kHz, after standard charge) |
| Standard charging method | CCCV, 1.50A (≈0.5C), 4.20 ± 0.05V, 150mA cut-off at 25°C |
| Rapid charge | CCCV, 4.0A, 4.20 ± 0.05V, 100mA cut-off at 25°C |
| Discharge cut-off voltage | 2.5V (end of discharge) |
| Standard discharge current | 0.2C (600mA) for nominal capacity rating |
| Max. continuous discharge current | 15A at 25°C (capacity ≈60% of nominal at 250 cycles) |
| Cycle life | ≈250 cycles with standard charge and 15A discharge, capacity ≈1800mAh (60% of nominal) at 25°C |
| Temperature dependence (discharge) | Relative capacity at 10A, 2.5V cut-off: -20°C to 60%; -10°C to 75%; 0°C to 80%; 25°C 100%; 60°C to 95% |
| Temperature dependence (charge) | Relative capacity after standard charge and 10A discharge: ~80% at 0°C; 90% at 5°C; 100% at 25°C; 95% at 45–50°C |
| Charge rate capability | At 4.2V charge: standard 1.5A gives 100% relative capacity; rapid 4A gives ≈98% at 10A discharge |
| Discharge rate capability | Relative capacity at 25°C, 2.5V cut-off: 0.6A 100%; 5A 97%; 10A 100%; 15A 97%; 20A 95% |
| Operating temperature | Charge: 0~50°C (recommended release <45°C); Discharge: -20~75°C (recommended release <60°C) |
| Storage temperature (capacity recovery ≈90%) | 1.5 years at -30~25°C; 3 months at -30~45°C; 1 month at -30~60°C (at ~50% SOC, 25°C) |
| Status at shipment | Shipped at 3.620–3.690V (approximately 50±5% SOC) |
| Application | Power tools, high-drain packs, other cylindrical Li-ion applications with appropriate BMS |
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