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INR18650 2600mAh 7.4V for POS Machine

Compact and lightweight 7.4V 2600mAh lithium-ion battery pack built with high-quality INR18650 cells in a stable 2S configuration. Supporting 3A continuous discharge and 2A charging, it delivers reliable and efficient power for portable and industrial devices. With low internal resistance (≤140mΩ), wide operating temperature range (-20℃ to 60℃), and ≥300 cycles at 80% DOD, this battery ensures stable performance and long service life. Ideal for handheld equipment, monitoring systems, medical devices, and backup power applications.
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PKCELL
Features & Benefits

Product Details

  • High-Efficiency 2S Lithium-ion Configuration
    Built with premium INR18650 cells in a stable 2S structure, the battery delivers a nominal voltage of 7.4V with consistent output performance. The optimized pack design ensures balanced cell matching, improving voltage stability and extending overall service life.
  • Stable 3A Continuous Discharge Capability
    Supports up to 3A continuous discharge, providing reliable power for medium-load applications. Whether used in portable instruments or industrial modules, the battery maintains stable output without significant voltage drop.
  • Fast and Safe 2A Charging
    The battery allows up to 2A constant charging current within the optimal temperature range (10~35℃), reducing charging time while maintaining safety. Smart charging rate control at low and high temperatures enhances battery protection and longevity.
  • Wide Operating Temperature Range
    Designed for diverse environments, it supports discharge from -20℃ to 60℃. Controlled charge and discharge rate management at different temperature stages ensures performance stability and minimizes degradation under extreme conditions.
  • Long Cycle Life
    With ≥300 charge-discharge cycles at 80% Depth of Discharge (DOD), the battery provides dependable long-term operation, reducing replacement frequency and overall maintenance cost.
  • Enhanced Safety Performance
    Low internal resistance (≤140mΩ) reduces heat generation during operation. The battery supports integration with customizable BMS solutions including overcharge protection, over-discharge protection, overcurrent protection, and short-circuit protection to ensure safe operation.
  • Compact & Lightweight Design
    Measuring only 20.5×37.5×68.5mm and weighing approximately 118g, the battery is ideal for space-constrained devices and portable systems requiring lightweight power solutions.
  • Flexible Customization Options
    Available with customized connectors, protection circuits, wiring harnesses, housing structures, and communication interfaces according to application requirements.

Tech Specs

  • Model
    Model INR18650
  • Nominal Voltage
    7.4V
  • Nominal Capacity
    2600mAh
  • Size
    20.5*37.5*68.5mm
  • Internal Resistance
    ≤140mΩ
  • Charging Cut-off Voltage
    8.4V
  • Discharge Cut-off Voltage
    6.0V
  • Maximum Constant Charging Current
    2A
  • Maximum Continuous Discharging Current
    3A
  • Charge Temperature
    0.2C | 0--45℃
  • Discharge Temperature
    -20℃~60℃
  • Cycle Life
    ≥300（80%DOD）
  • Weight
    118g

Pkcell - Benutzerdefiniert
Experte für Batterielösungen

Pkcell, established in 1998, is a professional Chinese battery manufacturer specializing in reliable and innovative power solutions. With a modern 28,000㎡ manufacturing facility and a strong R&D team of over 50 engineers, we deliver high-quality batteries to customers in more than 100 countries worldwide.

We focus on wide temperature and low temperature battery customization, providing stable and long-lasting power solutions designed to operate in extreme environments. Our batteries perform reliably under sub-zero and high-temperature conditions, making them ideal for medical devices, consumer electronics, industrial equipment, IoT systems and outdoor applications. Pkcell is committed to quality, safety and flexible OEM/ODM services to meet diverse customer needs.

  • 20
    +
    Jahre Erfahrung
  • 28000
    ㎡
    Einrichtung
  • 50
    +
    Engagierte F&E-Experten
  • 100
    +
    100+ exportierte Länder
About Pkcell