EVE INR21700-50E Li-ion Cell, 5000 mAh, up to 15 A

The EVE INR21700-50E is a high-capacity 21700 Li-ion cell, offering 5000 mAh capacity with a moderate 15 A discharge rating. It is designed for energy-efficient and endurance-focused battery packs, where runtime is more critical than maximum current output.

Best suited for long-range UAVs, FPV endurance drones, fixed-wing aircraft, and portable energy systems, the 50E delivers superior energy density (~18 Wh per cell), enabling longer operation times while keeping weight manageable.

Unlike high-drain cells such as the Molicel P42A or P50B, the 50E is not intended for extreme current draw. Instead, it provides consistent voltage output under moderate loads, ensuring stability and reliability in long-duration applications.

Key Specifications:

• Type: Li-ion Rechargeable Cell

• Model: EVE INR21700-50E

• Format: 21700 cylindrical

• Nominal Capacity: 5000 mAh (5.0 Ah)

• Nominal Voltage: 3.6 V

• Full Charge Voltage: 4.2 V

• Cut-off Voltage: 2.5 V

• Max Continuous Discharge: 9.8–10 A (recommended), up to 15 A

• Peak Discharge: up to 18–20 A (≤5 s with cooling)

• Internal Resistance (IR): ~18–22 mΩ

• Energy: ~18 Wh

• Chemistry: NMC (LiNiMnCoO2)

• Dimensions: Ø 21 mm × 70 mm

• Weight: ~68–70 g

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