1. Introduction
The Baishundianzi Smart Battery Monitor JX-3-1 is a compact and versatile LED battery level indicator and digital voltmeter. Designed to accurately display battery charge status and voltage, it is compatible with a wide range of battery types, including ternary lithium, lithium iron phosphate, and lead-acid batteries. This device is ideal for electric vehicles, energy storage systems, and various industrial and civilian applications, providing essential battery monitoring information at a glance.
2. Specifications
| Feature | Description |
|---|---|
| Model | JX-3-1 |
| Voltage Measurement Range | DC 7 - 55V (Red indication: DC 7 - 40V) |
| Working Current | <20mA |
| Display Mode | LED Screen |
| Display Color | Red |
| Product Size | 30mm x 30mm x 3mm |
| Weight | 8g |
| Supported Battery Types | Ternary Lithium (L): 3S - 12S Lithium Iron Phosphate (F): 3S - 14S Lead-Acid (P): 12V, 24V, 36V, 48V |
| Features | Customizable high/low voltage settings, Low voltage alarm, Adjustable backlight time, Power-off memory preservation |
3. Setup
The Smart Battery Monitor JX-3-1 is designed for straightforward integration. Follow these steps for proper installation:
- Identify Connection Points: The back of the module features clearly labeled connection pads. The primary connections are for power input.
- Wiring: Connect the red wire to the positive (+) terminal of your battery or power source. Connect the black wire to the negative (-) terminal (GND). Ensure a secure connection to prevent intermittent readings or damage.
- Mounting: The compact size (30x30x3mm) allows for flexible mounting. Ensure the display is visible and the module is protected from physical damage or excessive moisture.
- Initial Power-On: Upon first power-on, the device will typically default to the ternary lithium battery setting (L03S or L03). You may need to adjust this setting according to your battery type (see Section 4: Operation).
4. Operation
The Smart Battery Monitor JX-3-1 features a single button for controlling display and accessing settings.
4.1. Basic Button Functions
- Short Press: A brief press of the button will turn the display on or off.
- Long Press (2 seconds): Press and hold the button for 2 seconds to enter the settings page.
- Double Press: On the normal display page, press the button twice to switch between voltage and percentage display (DAO) modes.
4.2. Mode Settings
Once in the settings page (by long-pressing the button), you can navigate and adjust various parameters:
- Battery Type Selection:
To select the battery type, long press the button for 2 seconds to enter the settings page. Then, short press the button to cycle through the battery type settings:
- L03 (Ternary Lithium Battery): Default setting. Suitable for 3S to 12S lithium-ion batteries.
- F03 (Lithium Iron Phosphate Battery): Suitable for 3S to 14S lithium iron phosphate batteries.
- P12/P24/P36/P48 (Lead-Acid Battery): Select the appropriate voltage for 12V, 24V, 36V, or 48V lead-acid batteries.
- Display Mode (dAO / dR1):
Long press the button for 2 seconds to enter settings. Short press to navigate to the display mode setting. You can choose between:
- dAO: Displays both voltage and percentage.
- dR1: Displays voltage and percentage with automatic recognition.
- Custom High and Low Voltage Settings:
This feature allows you to define the voltage values corresponding to 100% (full charge) and 0% (complete discharge) for your specific battery. Long press for 2 seconds to enter settings, then short press to navigate to these options. - Display Backlight Timing (bL0):
Adjust the backlight display time. Long press for 2 seconds to enter settings, then short press to navigate to the bL0 setting page. - Factory Data Reset (rF0):
This function restores the product to its original factory calibration. Use with caution as it is not recommended for general use. Long press for 2 seconds to enter settings, then short press to navigate to the rF0 setting page.
4.3. Low Voltage Alarm
The device includes a low voltage alarm function. When the battery power drops below a critical level, a red lightning symbol will flash on the display, indicating that the battery needs recharging or attention.
4.4. Power-off Memory
The Smart Battery Monitor JX-3-1 is equipped with a power-off memory preservation function. This ensures that even in the event of an unexpected power outage, the device automatically saves the current battery information and settings, restoring them upon power resumption.
5. Maintenance
To ensure the longevity and accurate performance of your Smart Battery Monitor, follow these simple maintenance guidelines:
- Cleaning: Gently wipe the display and casing with a soft, dry cloth. Avoid using abrasive cleaners or solvents, which can damage the plastic and electronic components.
- Environmental Conditions: Store and operate the device in a dry environment, away from extreme temperatures, direct sunlight, and high humidity.
- Handling: The device is small and contains delicate electronic components. Handle it with care to avoid physical impact or bending of the wires.
- Connections: Periodically check the wiring connections to ensure they remain secure and free from corrosion.
6. Troubleshooting
If you encounter issues with your Smart Battery Monitor, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Display not turning on | No power, incorrect wiring, voltage outside operating range. | Check power connections (red to +, black to -). Ensure battery voltage is within DC 7-55V. |
| Incorrect voltage/percentage readings | Wrong battery type selected in settings, loose connections. | Verify the correct battery type (L, F, P) and cell count (S) is set. Check wiring for secure contact. |
| Red lightning symbol flashing | Battery voltage is low. | This is a low voltage alarm. Recharge your battery. |
| Display flickering or unstable | Unstable power supply, loose connection. | Ensure a stable power source. Re-check all wiring connections. |
| Cannot enter settings mode | Button not pressed correctly or long enough. | Ensure you press and hold the button for a full 2 seconds. |
7. Warranty and Support
For any technical support, warranty claims, or further inquiries regarding your Baishundianzi Smart Battery Monitor JX-3-1, please contact the seller or manufacturer directly. Keep your purchase records for reference.
An additional user manual in PDF format may be available for download. Please refer to the following link for more detailed documentation: Download User Manual (PDF)
