LiitoKala Lii-48S 21700 4800 mAh Li-ion Battery (with tip)

The professional LiitoKala Lii-48S Li-ion battery in 21700 form factor with a nominal capacity of 4800 mAh is designed for stable power supply of various equipment: flashlights, measuring instruments, portable household appliances, and other electronics. Manufacturer brand: Liitokala. Product type in catalog: Power Independence > Rechargeable Batteries. The nominal voltage of the cell is 3.7 V, charging voltage is 4.2 V, cutoff voltage is 2.7 V, which makes the battery compatible with a wide range of chargers and charge control circuits.

The key advantage of this model is the presence of a positive contact (tip), which simplifies installation in devices with spring contacts and reduces the risk of short circuits when touching metal surfaces. Cell dimensions: 21.5 x 73 mm, weight about 66 g, which allows the battery to be used in compact enclosures without significantly increasing the device's mass. Recommended charging current: 1–2 A, which ensures a balanced rate of capacity recovery without excessive heating and accelerated cell wear.

Application and Operating Tips: The battery is ideal for high-power flashlights, portable power sources, professional instruments, and any devices designed for the 21700 size. It is recommended to use compatible chargers with voltage control up to 4.2 V and current limitation within 1–2 A. Avoid overcharging above 4.2 V and complete discharge below 2.7 V to preserve battery life and avoid potential damage.

Specifications:

• LiitoKala Lii-52S Li-ion battery with protective tip;
• size – 21700;
• nominal capacity – 4800 mAh;
• nominal voltage – 3.7 V;
• charging voltage – 4.2 V;
• cutoff voltage – 2.7 V;
• recommended charging current – 1-2 A;
• dimensions – 21.5 x 73 mm;
• weight – 66 g;
• positive contact (tip) for ease of installation and additional short-circuit protection.

This battery combines high capacity and reliability, characteristic of Liitokala products, making it an excellent choice for users who need long autonomous device operation without additional weight and size losses. Before use, it is recommended to check compatibility with your device in terms of size and voltage, and to use high-quality chargers with current and voltage control.

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