4S Lithium Battery Capacity Indicator Module - LED Level Tester

The 4S Lithium Battery Capacity Indicator Module is a compact LED-based level tester designed to visually display the remaining charge of a 4-cell (4S) lithium battery pack. Using a clear 4-level LED bar display, it provides instant status indication of battery voltage, helping users monitor charge levels effectively. This module is ideal for 4S lithium battery packs used in portable power systems, robotics, electric vehicles, and DIY energy storage projects. It is easy to integrate and ensures reliable, real-time battery monitoring.

Features:

1. LED bar indicator for real-time battery level display
2. Designed for 4-cell (4S) lithium battery packs
3. Four-step LED indication for different charge levels
4. Compact and easy to integrate with battery systems
5. Low power consumption for efficient monitoring
6. Suitable for DIY battery packs, power banks, robotics, and portable power units

Specifications:

• Input Voltage Range: 12.0V – 16.8V
• Battery Type: 4S Li-ion / LiPo (14.8V nominal)
• Display Type: 4-level LED bar indicator
• LED Indication Range (Approx.):

  • 4 LEDs ON: ≥ 16.6V (Full)

  • 3 LEDs ON: ~15.8V

  • 2 LEDs ON: ~14.8V

  • 1 LED ON: ~14.0V (Low)

  • < 13.5V: Battery very low

• Module Type: Voltage-based battery level tester
• Power Consumption: Very low
• PCB Size: Compact small module
• Operating Temperature: –10°C to +60°C
• Applications: 4S battery packs, electric vehicles, power banks, robotics, DIY electronics

Package Includes:

1 × 4S Lithium Battery Capacity Indicator Module – LED Level Tester