Samsung 18650-26F Li-ion Cell, 2600 mAh, 5.2 A

The Samsung INR18650-26F is a cost-effective Li-ion cell in the 18650 format, featuring a 2600 mAh capacity and a 5.2 A continuous discharge rating. It is best suited for low- to medium-drain applications, where endurance and compactness matter more than peak current output.

Typical applications include portable devices, backup power packs, lighting systems, and low-consumption UAV modules. Its NMC chemistry ensures good safety, energy density, and cycle life, but it is not intended for high-power builds. For demanding current loads, other Samsung cells such as the 30Q or 25R are more suitable.

Key Specifications:

• Type: Li-ion Rechargeable Cell

• Model: Samsung INR18650-26F

• Format: 18650 cylindrical

• Nominal Capacity: 2600 mAh (2.6 Ah)

• Nominal Voltage: 3.6 V

• Full Charge Voltage: 4.2 V

• Cut-off Voltage: 2.5 V

• Max Continuous Discharge: 5.2 A

• Peak Discharge: up to ~7 A (≤5 s)

• Internal Resistance (IR): ~35–40 mΩ

• Energy: ~9.4 Wh

• Chemistry: NMC (LiNiMnCoO2)

• Dimensions: Ø 18 mm × 65 mm

• Weight: ~45–47 g

• Cycle Life: 500–800 (with proper care)