
7.4V 6Ah 18650 Lithium Ion Battery Pack
Electrical Specifications
| Property | Parameter |
|---|---|
| Product Number | 04DQ0005-13T |
| Cell Model | 18650/3.7V/2600mAh |
| Battery Configuration | 18650-2S3P |
| Nominal Voltage | 7.4V |
| Nominal Capacity | 7.8Ah |
| Rated Energy | 57.72Wh |
| Charging Voltage | 8.4V |
| Discharge Cut-off Voltage | 6.0V |
| Standard Charging Current | ≤2A |
| Standard Discharge Current | 1A |
| Max Continuous discharge current | 6A |
| Internal Resistance | ≤160mΩ |
Mechanical & Environmental
| Property | Parameter |
|---|---|
| Charging Temperature | 0~45℃ |
| Discharge Temperature | -20~60℃ |
| Storage temperature | -20~45℃ |
| Dimensions | 144×59.8×22.5 mm (Max) |
| Weight | 500g |
| Output Type | Standard DC output |
| Battery Case | Engineering plastic |
| Communication Protocol | SMBUS |
| Protection Rating | Not specified |
| Protection System | Short circuit, overcharge, overdischarge, overcurrent protection |
Application Background
This battery pack is designed for handheld spectrum analyzers, widely used in RF testing, communication diagnostics, and field signal analysis.
The device requires stable long-duration operation in complex electromagnetic environments, demanding high power stability, communication reliability, and compact structure.
Project Challenges
Continuous operation requirement: 6–10 hours
High-precision spectrum acquisition requires stable voltage output
SMBUS communication requires real-time and reliable data transmission
Frequent charge/discharge cycles demand long cycle life
Customized Battery Solution
7.4V 2S3P architecture: stable power output for precision instruments
SMBUS smart communication: enables accurate SOC and temperature monitoring
Gold-plated spring contacts: improve conductivity and connection reliability
Multiple protection system: overcharge, overdischarge, overcurrent, short-circuit protection
Application Results
Improved long-duration testing stability
Ensured accuracy and consistency of spectrum data acquisition
Enhanced reliability in complex field environments
Extended battery cycle life and overall device service life
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)












