Summary of 18350 1100mAh 3C Battery Li Ion Rechargeable​

The 3.7V 18350 1100mAh 3C lithium-ion cell is a high-performance rechargeable power solution engineered for applications with demanding size, weight, and reliability constraints. Featuring an outstanding energy density of up to 150.74Wh/kg, it provides substantial capacity in an exceptionally compact and lightweight format, making it highly effective for space-limited designs.

Compared with 18650 and 18500 batteries, the 18350 cell offers a shorter height that better suits special-dimension devices, while still delivering strong power output, a wide operating temperature range, and enhanced safety through its integrated pressure relief valve and current interrupt device (CID).

3.7V 18350 Li-ion Battery​ 1100mAh Specification

Model: 18350

Rated capacity: 1100mAh

Energy: 4.07Wh

Energy Density: 150.74Wh/kg

Minimal Capacity: 1050mAh

Rated voltage: 3.7V

Discharge Cut-off Voltage: 2.75V

Charge Cut-off Voltage: 4.2V

Cycle Life: More than 500 cycles

Dimensions: Φ18*35mm

Weight: 27g

Internal Resistance: Less than 60mΩ

Standard Discharge Current: 0.2C (220mA)

Standard Charge Current: 0.2C (220mA)

Max Continuous Discharge Rate: 3C (3.3A)

Max Continuous Charge Current: 1C (1.1A)

Charging Temperature: 0 to 45℃;

Discharge Temperature: -20 to 65℃

Storage Temperature:

• -20℃~25℃: 12 months
• -20℃~45℃: 3 months
• -20℃~60 ℃: 1 month

Key Features – 18350 Rechargeable Battery​

📐 Compact Form Factor for Special Size Requirements

The 18350 lithium-ion battery is designed for applications where height limitations are critical, featuring a shorter profile than 18650 and 18500 cells, enabling slimmer, lighter, and more compact product designs, making it ideal for devices with custom or limited internal space and particularly well suited for industrial electronics, portable instruments, customized battery packs, and compact power systems.

⚡ High Capacity in a Small Body

Despite its compact size, this cell delivers a full 1100mAh capacity, providing longer runtime without increasing device dimensions, while offering high volumetric and gravimetric efficiency, an excellent balance between size, capacity, and discharge rate, and optimization for modern compact electronics—resulting in more power per gram and enabling advanced device performance without compromise.

🛡️ Integrated Safety Architecture

This 18350 lithium-ion cell prioritizes safety by integrating a Current Interrupt Device (CID) with an internal pressure relief valve. Designed for automatic activation, the CID system responds to faults such as short circuits, overcharge, or internal pressure spikes by immediately interrupting current flow and venting built-up pressure. This comprehensive strategy is essential for mitigating the risks of cell swelling, physical rupture, and thermal runaway, thereby ensuring superior reliability in demanding real-world conditions.

🌡️ Wide Operating Temperature Range

Designed to perform where standard cells struggle, this battery operates reliably across a wide temperature range of -20°C to 65°C, delivering excellent low-temperature discharge performance, stable operation under high-temperature conditions, and dependable power for outdoor, industrial, and harsh-environment applications, making it a reliable energy solution across diverse climates and usage scenarios.

❓ Frequently Asked Questions (FAQ)

Q1: Is an 18350 battery the same as a CR123?

A: No, an 18350 battery is not the same as a CR123, as an 18350 is a rechargeable 3.7V lithium-ion cell while a CR123 is typically a non-rechargeable 3.0V lithium primary battery. Although their sizes are similar, their voltage, chemistry, and charging requirements are different and they are not directly interchangeable.

Q2: What is the difference between 18650 and 18350?

A: The main difference between 18650 and 18350 batteries is size, as the 18650 is longer and typically offers higher capacity, while the 18350 is shorter and designed for compact devices with height limitations. Both use similar lithium-ion chemistry, but the 18350 prioritizes space-saving design over maximum capacity.

Q3: How to charge an 18350 battery?

A: Charge an 18350 battery using a dedicated lithium-ion charger designed for 3.7V cells, with a standard charge voltage of 4.2V. Always follow the recommended charging current and avoid overcharging to ensure safety and extend battery life.

Q4: How long to charge 18350 battery​

A: Charging an 18350 battery typically takes about 1 to 3 hours, depending on the charger current and the battery’s capacity. Using a proper lithium-ion charger with the correct charging rate ensures safe and efficient charging.

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