Liitokala Lii-50A 5000 mAh 20A 26650 Li-ion Battery — Overview

The LiitoKala Lii-50A 26650 5000mAh battery from Liitokala is a powerful 26650 format lithium-ion cell designed for a wide range of applications: power tools, medical equipment, LED flashlights, and other devices requiring a reliable and high-capacity power source.

The model has a nominal capacity of 5000 mAh (5 Ah) and a nominal voltage of 3.65 V. The 20A in the name highlights the battery's high starting and operating characteristics; actual operating currents according to technical parameters are: continuous discharge up to 3C (approximately 15 A) and maximum discharge up to 5C (approximately 25 A), ensuring stable operation under heavy loads.

The battery is designed for a service life of at least 1000 cycles at a discharge depth of up to 80%, making it a durable solution for intensive use. An internal resistance of less than 20 mOhm reduces energy losses at high current.

Operating Conditions and Charging

Charging is permissible with a current of up to 5000 mA at temperatures from 0°C to 45°C. Discharge is possible even at low temperatures — from -20°C, which allows the battery to be used outdoors and in cold conditions. The recommended storage temperature is from -20°C to 45°C.

Physical Parameters and Safety

The battery casing is designed in accordance with safety requirements and is resistant to external influences. The cell dimensions are 26.5 x 65.5 mm, and its weight is 100 g, allowing for convenient integration into portable and stationary devices.

Specifications

• LiitoKala Lii-50A Lithium Battery
• Size – 26650
• Nominal Capacity – 5000 mAh
• Nominal Voltage – 3.65 V
• Stated Current in Name – 20A
• Continuous Discharge – up to 3C (~15 A)
• Maximum Discharge – up to 5C (~25 A)
• Maximum Charging Current – 5000 mA
• Internal Resistance – < 20 mOhm
• Service Life – at least 1000 cycles at a discharge depth of up to 80%
• Charging Temperature – from 0°C to 45°C
• Discharging Temperature – from -20°C to 60°C
• Recommended Storage Temperature – from -20°C to 45°C
• Dimensions – 26.5 x 65.5 mm
• Weight – 100 g

The Liitokala Lii-50A battery combines high energy density and stable operation across a wide temperature range, making it an excellent choice for professional and amateur use. Before use, we recommend checking compatibility in terms of dimensions and electrical parameters with your device, and adhering to charging and storage recommendations to ensure maximum service life.

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