7.4V 2.2Ah 18650 lithium ion battery Pack

Product Number:
09AQ071-06
Nominal voltage:
7.4V
Nominal capacity:
2600mAh
Battery Configuration:
18650-2S1P
Dimension:
75×38×20mm
Application:
medical devices
PVC lightweight pack, medical safety protection, stable 2A output
Product Overview

Electrical Specifications

Attribute Parameter
Product Number 09AQ071-06
Cell Model 18650/3.7V/2600mAh
Battery Configuration 18650-2S1P
Nominal Voltage 7.4V
Nominal Capacity 2600mAh
Rated Energy 19.24Wh
Charging Voltage 8.4V
Discharge Cut-off Voltage 6.0V
Standard Charging Current ≤2000mA
Standard Discharge Current 2000mA
Max Continuous Discharge Current 3000mA
Internal Resistance ≤250mΩ

Mechanical & Environmental

Attribute Parameter
Charging Temperature 0~45℃
Discharge Temperature -20~60℃
Storage Temperature -20~35℃
Dimensions 75×38×20mm(Max)
Weight 100g
Battery Case PVC
Protection System Short circuit protection, overcharge protection, over-discharge protection, overcurrent protection

Application Background

This battery solution is designed for ECG machines and medical testing instruments, widely used in hospitals, outpatient clinics, and mobile diagnostic scenarios.
The device requires continuous and stable signal acquisition, demanding high power stability, compact size, and safety reliability.

Project Challenges

Continuous operation for 4–12 hours medical monitoring
High-precision signal acquisition requiring stable voltage output
Frequent charge-discharge cycles requiring stable cycle performance
Compact portable structure with strict size and weight limits

Customized Battery Solution

7.4V dual-series lithium structure for stable medical device power supply
Built-in multiple protections: overcharge, over-discharge, overcurrent, and short circuit protection
Lightweight PVC encapsulated design for portability and easy integration
Wide temperature operating capability for various medical environments

Application Results

Ensures stable continuous operation of ECG equipment
Improves consistency and reliability of diagnostic power supply
Enhances portability and mobile usability of the device
Extends overall service life and operational stability of the equipment

We support flexible customization based on your project requirements, including:

  • Voltage range: 3.2V – 72V
  • Capacity range: 100mAh – 100Ah
  • Electrical performance design: Charge/discharge parameters, C-rate, internal resistance, temperature performance
  • Mechanical design: Appearance, dimensions, housing material, and integrated structural engineering
  • BMS design: Battery protection, cell balancing, and communication protocols (SMBus / I2C / UART)
Get a Custom Battery Solution
Tell us about your project needs. Our engineers will provide a tailored battery solution and quotation within 24 hours.