11.1V 18650 2600mAh Lithium-ion Rechargeable Battery Pack Gun Type

Summary of 11.1V Lithium Ion Battery​

The 11.1V 18650 2600mAh Lithium-ion Rechargeable Battery Pack (Gun Type) is a high-performance power solution built with Nickel-Cobalt-Manganese (NCM) chemistry, delivering exceptional energy density, safety, and reliability. Designed with a built-in protection board and a unique 2+1 gun-type form factor, it supports custom configurations for specialized equipment. With robust safety features, a long cycle life, and excellent performance in a wide temperature range, this battery pack is ideal for industrial, medical, and professional electronics applications.

18650 3S Battery Pack​ Parameters

Battery Model: 3S 18650 Battery

Battery Type: Lithium-ion Batteries

Nominal Voltage: 11.1V

Charge Voltage: 12.6V

Cut-off Voltage: 8.1V

Nominal Capacity: 2600mAh

Minimum Capacity: 2550mAh

Max Continuous Discharge Current: 5A

Peak Discharge Current: 10A

Max Charge Current: 5A

Cycle Life: ≥500 Cycles @80% DOD

Weight: 152g

Size:  20*39*133mm

Charging Temperature: 0°C to 50°C

Operating Temperature: -20°C to 65°C

Storage Temperature:

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

Key Features – 11.1V 2600mAh 18650 Battery

🔧 High Energy Density NCM Cells

Constructed from premium Nickel-Cobalt-Manganese (LiNiCoMnO2) materials, this battery pack provides high capacity and energy density, ensuring stable and long-lasting power delivery. Its optimized chemistry makes it suitable for compact devices requiring powerful and efficient energy sources.

🛡️ Comprehensive Protection Circuit (PCM/BMS)

Equipped with a built-in protection board, the pack safeguards against:

  • Overcharge
  • Over-discharge
  • Short circuit
  • Overcurrent
  • Overtemperature

These advanced safety functions ensure the battery operates reliably and securely, even under demanding conditions.

🔁 Long Cycle Life

Enjoy extended service life with over 500 charge/discharge cycles, maintaining 80% of initial capacity. The pack is engineered to deliver consistent performance and minimize degradation over time, reducing replacement costs.

⚡ High Current Capability

Supports 5A continuous charge and discharge current, offering reliable high-rate performance for devices with heavy load requirements. Ideal for applications where stability and endurance are critical.

🔫 Unique Gun-Type 2+1 Shape

The distinctive gun-type 2+1 configuration allows easy integration into devices with special dimensional constraints. Its compact yet efficient design is favored in customized equipment and portable instruments.

🌡️ Wide Operating Temperature Range

Reliable operation from -20°C to 65°C, ensuring stable performance in both low-temperature and high-temperature environments. Perfect for outdoor, industrial, and professional field applications.

🧩 Full Customization Support

Tailor the battery to your exact needs:

  • Custom size, capacity, and BMS configuration
  • OEM branding: labels, sleeves, logos, and packaging
  • Adjustable wire length and connector type

From design to labeling, every aspect can be customized to meet your project specifications.

📦 Applications

  • Industrial handheld devices
  • Medical and inspection instruments
  • Portable communication equipment
  • Security and monitoring systems
  • Custom OEM electronics

❓Frequently Asked Questions (FAQ)

Q1: What type of cells does this battery pack use?

A1: It uses high-energy-density NCM (Nickel-Cobalt-Manganese) 18650 cells, known for excellent power-to-weight ratio and stable performance.

Q2: Does the battery include a protection circuit?

A2: Yes, it includes a PCM/BMS with protections against overcharge, over-discharge, short circuit, overcurrent, and overtemperature.

Q3: Can I request a custom size or capacity?

A3: Absolutely. Cestpower offer full customization services, including capacity, dimensions, connectors, wire length, and OEM labeling.

Q4: What is the cycle life of this battery pack?

A4: It maintains over 80% capacity after 500 full cycles, ensuring long-term reliability.

Q5: What is the operating temperature range?

A5: The battery operates efficiently between -20°C and +65°C, suitable for a wide range of environments.

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