3.7V 16340 700mAh 3C Rechargeable Lithium Ion Battery Cell

Summary of 16340 700mAh 3C Cylindrical Li Ion Battery​

3.7V 16340 700mAh 3C Rechargeable Lithium-Ion Battery Cell is a compact, high-performance power solution designed for devices with strict size, weight, and environmental requirements. With a shorter height, lightweight cylindrical design, and up to 500 charge cycles, this eco-friendly rechargeable battery delivers stable energy while supporting extensive OEM customization options.

16340 Rechargeable Battery​ Specification

Model: 16340

Rated capacity: 700mAh

Energy: 2.59Wh

Energy Density: 152.35Wh/kg

Minimal Capacity: 650mAh

Rated voltage: 3.7V

Discharge Cut-off Voltage: 2.75V

Charge Cut-off Voltage: 4.2V

Cycle Life: More than 500 cycles

Dimensions: Φ16*34mm

Weight: 17g

Internal Resistance: Less than 75m Ω

Standard Discharge Current: 0.2C (140mA)

Standard Charge Current: 0.2C (140mA)

Max Continuous Discharge Rate: 3C (2.1A)

Max Continuous Charge Current: 1C (0.7A)

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 – 16340 Lithium Ion Battery​

🌱 Eco-Friendly & Rechargeable Power

This 16340 lithium-ion battery cell is designed to minimize environmental impact by eliminating disposable battery waste. Being fully rechargeable, it reduces long-term operating costs while supporting sustainable energy use across consumer and industrial applications.

📏 Low Height Design for Special Size Requirements

Compared to standard cylindrical cells, the 16340 format features a lower height, making it ideal for devices with tight internal space or special structural constraints. This design advantage allows engineers to optimize layouts without sacrificing performance.

⚡ Compact Size & Lightweight Structure

With its small footprint and reduced weight, the 16340 700mAh cell is perfectly suited for portable electronics and precision equipment. The lightweight construction enhances overall device ergonomics and portability.

🔁 Long Cycle Life with Reliable Capacity Retention

Engineered for durability, this battery supports up to 500 charge–discharge cycles, while maintaining a remaining capacity above 560mAh. This ensures long-term reliability, stable output, and lower replacement frequency for end users.

🛠️ Extensive Customization & OEM Support

We offer full customization options to meet your specific application needs, including:

  • Voltage configuration

  • Capacity adjustment

  • Discharge rate (C-rate)

  • Cycle life optimization

  • PVC sleeve color options

  • OEM & private labeling services

This flexibility makes the 3.7V 16340 battery an excellent choice for branded products and specialized projects.

📦 Typical Applications

The 16340 700mAh rechargeable lithium-ion cell is widely used in:

  • Compact electronic devices

  • Smart sensors & IoT equipment

  • Medical and monitoring instruments

  • Portable tools with space limitations

  • Custom battery packs and OEM products

❓ Frequently Asked Questions (FAQ)

Q1: Are 16340 batteries the same as CR123?

A: No, 16340 batteries are not the same as CR123 batteries. While they share a similar size, 16340 batteries are rechargeable lithium-ion cells (3.7V), whereas CR123 batteries are non-rechargeable lithium cells (3.0V) with different voltage and charging requirements.

Q2: What is a 16340 battery equivalent to?

A: 16340 battery is commonly considered equivalent in size to a CR123 or CR123A battery. However, a 16340 is rechargeable and rated at 3.7V, while CR123/CR123A batteries are non-rechargeable and rated at 3.0V, so they are not always interchangeable.

Q3: Which is better CR123A or 16340 battery?

A: Neither is universally better—it depends on the application. CR123A batteries offer longer shelf life and lower voltage for devices designed for disposables, while 16340 batteries are rechargeable, more cost-effective over time, and better for users who need frequent recharging.

Q4: What is the difference between 16340 and 18650 batteries?

A: The main difference between 16340 and 18650 batteries is size and capacity: 18650 cells are much larger and provide significantly higher energy capacity. In contrast, 16340 batteries are smaller and lighter, making them better suited for compact devices with limited space.

Q5: What are 16340 batteries used for?

A: 16340 batteries are commonly used in compact electronic devices that require a small, lightweight power source. Typical applications include LED flashlights, tactical lights, cameras, medical instruments, and other space-constrained portable equipment.