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SAMSUNG INR18650-30Q

SAMSUNG INR18650-30Q

Technical Specifications

Nominal Voltage: 3.6 V
Typical Capacity: ~3,000 mAh (minimum ~2,950 mAh)
Dimensions: Diameter max ~18.4 mm, Height max ~65.0 mm
Weight: Max ~48 g

Standard Charge Current: ~1.5 A, up to 4 A for rated charge mode
Max Continuous Discharge Current: ~15 A (under specified conditions)
Charge Cut-off Voltage: 4.20 V ±0.05 V
Discharge Cut-off Voltage: 2.50 V
Operating Temperature Range:

Charge: 0 °C to 50 °C (recommended < 45 °C)

Discharge: −20 °C to 75 °C (recommended < 60 °C)

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Key Performance Highlights

  1. High Capacity: Nominal capacity of ~3,000 mAh.
  2. Nominal Voltage: 3.60 V.
  3. Strong Discharge Capability: Continuous discharge rated at ~15 A.
  4. Pulse/Peak Discharge: Can handle very high pulse currents (spec sheet references up to 30 A with thermal cut).
  5. Low Internal Resistance: AC internal resistance ≤ ~26 mΩ.
  6. Fast Charging Support: Rated for up to 4 A (CC/CV) charge current.
  7. Moderate Cycle Life: After ~250 cycles at 15 A discharge, capacity stays ≥ ~1,770–1,800 mAh (~60% of original).
  8. Wide Operating Temperature Range: Charge: 0 °C to ~45–50 °C; Discharge: –20 °C to ~60–75 °C depending on spec.
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Factory Direct Supply-Guarantee 100% Genuine Cells And Better PriceINR SAMSUNG 18650 30Q battery cell specification

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INR18650-30Q certificatesMSDS, UN38.3, UL, CB, IEC62133, BIS, etc.

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Frequently Asked Questions

What is the maximum continuous discharge current?

  • Rated continuous discharge is 15 A at 25 °C, according to Samsung’s datasheet.
  • With a thermal cut-off, it can handle up to 30 A pulse per some spec listings.

What is the recommended charging method?

  • Use a CC/CV (constant current / constant voltage) profile up to 4.20 V.
  • Standard charge current: 1.5 A, rapid charge: 4 A (per datasheet).

What is the operating temperature range?

  • Charging: 0 °C to 45 °C (cell surface 0 °C to 50 °C).
  • Discharging: –20 °C up to 60 °C (cell surface up to 80 °C per spec, but “must re-discharge release < 60 °C”).

Are there concerns about counterfeits?

  • Yes. Users on forums note the risk of fake 30Q cells, especially if weight or internal resistance does not match spec. > “Datasheet … says it should be around 48 g” for a genuine 30Q.
  • Always buy from reputable sources and verify specs (capacity, IR) to avoid counterfeits.


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