Samsung ICR18650-30B Specifications
18650 · NMC — full datasheet specs for the Samsung ICR18650-30B, plus what it delivers in common DIY pack configurations. Plan a build with it in the Battery Pack Calculator.
At 2950 mAh it ranks #23 of 165 18650 cells in our database by capacity — one of the higher-capacity 18650 options.
Full specifications
| Capacity | 2950 mAh |
|---|---|
| Nominal voltage | 3.78 V |
| Max charge voltage | 4.35 V |
| Discharge cutoff | 2.8 V |
| Energy | 11.15 Wh |
| Internal resistance | 100 mΩ |
| Standard charge current | 1475 mA |
| Standard discharge current | 590mA |
| Chemistry | NMC |
| Form factor | 18650 |
| Wrap color | Green (Light) |
| Insulator ring | White |
At the standard 1475 mA charge rate, a full charge takes roughly 2 hours plus the constant-voltage taper at the end.
The ICR18650-30B in a battery pack
Common DIY series configurations using this cell's real 3.78V nominal voltage, with a 3-cells-in-parallel (3P) example for capacity:
| Config | Nominal voltage | Fully charged | Cells (3P) | Capacity (3P) | Energy (3P) | |
|---|---|---|---|---|---|---|
| 3S | 11.3 V | 13 V | 9 | 8.9 Ah | 100 Wh | cell count guide |
| 7S | 26.5 V | 30.4 V | 21 | 8.9 Ah | 234 Wh | cell count guide |
| 10S | 37.8 V | 43.5 V | 30 | 8.9 Ah | 335 Wh | cell count guide |
| 13S | 49.1 V | 56.6 V | 39 | 8.9 Ah | 435 Wh | cell count guide |
| 14S | 52.9 V | 60.9 V | 42 | 8.9 Ah | 468 Wh | cell count guide |
Size a full pack around the ICR18650-30B — voltage, capacity, runtime, and BMS:
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Specs come from manufacturer datasheets and independent testing; Mooch-tested discharge ratings are shown when available because they reflect real continuous performance better than headline datasheet numbers. Browse the full 18650 & 21700 cell database to compare every cell.