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18650 Lithium Cell — Ø18 × 65 mm cylindrical lithium cell

18650 Lithium Cell

Ø18 × 65 mm cylindrical lithium cell (NCM) — 32 variants for high-power, energy-storage and OEM applications.

Dimensions: Ø18 × 65 mm NCM 32 Variants
Request datasheet & quote → Talk to engineer

Models in this series

Model Type Chemistry Capacity Voltage Max discharge Cycle life Weight
INR18650-20D High-power NCM 2000mAh 3.6V 5C 300~600 ≤45g
INR18650-22D High-power NCM 2200mAh 3.6V 5C 300~600 ≤46g
INR18650-25D High-power NCM 2500mAh 3.6V 3C 300~600 ≤47g
INR18650-26D High-power NCM 2600mAh 3.6V 3C 300~600 ≤47.5g
INR18650-34D High-power NCM 3400mAh 3.6V 3C 300~500 ≤49g
INR18650-35D High-power NCM 3500mAh 3.6V 3C 300~500 ≤49.1g
INR18650-36D High-power NCM 3600mAh 3.6V 3C 300~500 ≤49.2g
INR18650-40D High-power NCM 4000mAh 3.6V 3C 300~500 ≤51g
INR18650-42D High-power NCM 4200mAh 3.6V 3C 300~500 ≤51.2g
INR18650-25E ESS NCM 2500mAh 3.6V 3C 400~600 ≤46g
INR18650-30E ESS NCM 3000mAh 3.6V 3C 500~1000 ≤48g
INR18650-32E ESS NCM 3200mAh 3.6V 3C 500~800 ≤48.5g
INR18650-33E ESS NCM 3350mAh 3.6V 3C 500~800 ≤49g
INR18650-34E ESS NCM 3400mAh 3.6V 3C 500~1000 ≤49.3g
INR18650-35E ESS NCM 3500mAh 3.6V 3C 500~1000 ≤49.5g
INR18650-36E ESS NCM 3600mAh 3.6V 3C 500~1000 ≤50g
INR18650-40E ESS NCM 4000mAh 3.6V 2C 300~500 ≤51g
INR18650-42E ESS NCM 4200mAh 3.6V 2C 300~500 ≤51.3g
INR18650-15P High C-rate NCM 1500mAh 3.6V 10C 300~500 ≤44.5g
INR18650-20P High C-rate NCM 2000mAh 3.6V 10C 300~600 ≤45.5g
INR18650-22P High C-rate NCM 2200mAh 3.6V 10C 300~600 ≤45.7g
INR18650-25P High C-rate NCM 2500mAh 3.6V 5C 300~500 ≤47g
INR18650-26P High C-rate NCM 2600mAh 3.6V 5C 300~600 ≤47.5g
INR18650-28P High C-rate NCM 2800mAh 3.6V 5C 300~600 ≤48g
INR18650-30P High C-rate NCM 3000mAh 3.6V 3C 300~600 ≤48.3g
INR18650-34P High C-rate NCM 3400mAh 3.6V 3C 300~800 ≤49g
INR18650-35P High C-rate NCM 3500mAh 3.6V 3C 300~500 ≤49.2g
INR18650-36P High C-rate NCM 3600mAh 3.6V 3C 300~600 ≤50g
INR18650-25PL Low-temp NCM 2500mAh 3.6V 5C 300~500 ≤46.8g
INR18650-26PL Low-temp NCM 2600mAh 3.6V 5C 300~500 ≤47g
INR18650-34PL Low-temp NCM 3400mAh 3.6V 3C 300~600 ≤49g
INR18650-42PL Low-temp NCM 4200mAh 3.6V 3C 300~500 ≤49g

Full specs (weight, internal resistance, max charge/discharge, cycle life) are provided per model on the datasheet after RFQ.

18650 lithium cell — Ø18 × 65 mm cylindrical cell

The 18650 (Ø18 × 65 mm) is the most widely deployed cylindrical lithium cell format in the world. We supply it in NCM chemistry across 32 variants, with rated capacities from roughly 1500 mAh to 4200 mAh — so you can match the cell to your design’s priority, whether that is peak current, runtime, low-temperature performance or cycle life.

How to read the model number

Capacity and cell type are encoded directly in the model number. The prefix marks the chemistry (INR = NCM) and the suffix marks the type:

  • D — high-power: high continuous and pulse discharge for power tools and traction.
  • E — energy-storage: maximum capacity per cell for runtime-driven packs.
  • P — high C-rate: highest discharge rate for demanding loads.
  • PL — low-temperature: stable discharge in cold climates.
  • M / MF — high-safety (LMFP / LiFePO4): longer cycle life and thermal stability.

So an INR18650-35E is a 3500 mAh NCM energy-type cell. Full per-model specs — weight, internal resistance, charge/discharge rates, cutoff voltage and cycle life — are listed in the table above and in the datasheet.

Typical applications

The 18650 is the backbone of e-bike & e-scooter packs, cordless power tools, drones & UAVs and energy-storage systems.

Sourcing & OEM/ODM

  • 32 NCM variants; capacity binning and matched cells for pack assembly.
  • UN38.3 transport tested; manufacturer cell-safety certificates (UL / IEC / CB) available by model — see quality control.
  • OEM / ODM: own-brand label, custom capacity binning and packaging.
  • Datasheet, certificates and wholesale pricing provided after the RFQ.

Request the 18650 datasheet & wholesale quote →