1S Lithium Battery Capacity Indicator Board – LED Display Module for Li-ion / Li-po Voltage Levels

Monitor your battery status in real-time with our compact and user-friendly Lithium Battery Capacity Indicator Board. This module provides a clear, LED-based visual representation of battery levels for 1S to 4S Li-ion / Li-po cells. Ideal for electronics engineers and hobbyists, this module allows for quick assessment of remaining charge, whether you're using single or multi-cell battery packs.

Key Features

• Wide Compatibility: Supports 1S, 2S, 3S, 4S lithium batteries (Li-ion / Li-po).
• LED Display: Features 1 red and 4 blue (or green) LEDs for clear charge level indication.
• Multi-voltage Support: Compatible with 12V, 24V, 36V, and 48V lead-acid batteries or lithium iron phosphate setups.
• Real-Time Voltage Indication: LED lights illuminate based on battery voltage thresholds.
• Accuracy: Voltage detection error margin is approximately 2%.
• Plug & Play: Simple two-wire connection with no programming required.

Voltage Display Logic

For each supported cell (N), the LEDs respond to voltage ranges as follows:

• 1st LED (Red): Always on for power indication.
• 2nd LED: Illuminates when voltage > N × 3.3V.
• 3rd LED: Lights up when voltage > N × 3.5V.
• 4th LED: Activates when voltage > N × 3.7V.
• 5th LED: Turns on when voltage > N × 3.9V.

Lead-Acid & LiFePO4 Battery Compatibility

• 12V Batteries: LEDs activate at >11.0V, >11.3V, >11.6V, >12.9V.
• 24V Batteries: LEDs light up at >22.5V, >24.0V, >25.2V, >26.4V.
• 36V Batteries: LEDs turn on at >33.5V, >35.2V, >37.0V, >38.7V.
• 48V Batteries: LEDs illuminate at >44.8V, >47.0V, >49.0V, >52.0V.

Applications

• Battery-powered projects & DIY electronics.
• Electric bikes, scooters, and RC models.
• Portable power banks and solar storage systems.
• Robotics and embedded systems.

Note: This product is designed for general voltage indication purposes and has an approximate 2% tolerance range. It is not recommended for precision battery diagnostics.