Simarine pico_one
Simarine Pico One Battery Monitor Set User Manual
Model: Pico One
Product Overview
The Simarine Pico One Battery Monitor Set provides comprehensive monitoring for various systems, including batteries, tanks, and temperatures. It is designed for multi-voltage systems (12V, 24V, 48V) and is compatible with both lead-acid and lithium batteries.
Key features include:
- Battery Monitoring: Displays voltage, state of charge, remaining ampere hours, and time to charge/discharge.
- Multi-Voltage Compatibility: Supports 12V, 24V, and 48V systems.
- Shunt SC303: Includes 2 resistance inputs, 2 voltage inputs, 1 temperature sensor socket, and 1 current input.
- Sleek Design: High-resolution 3.5" IPS screen with Gorilla Glass, polarizing filter, and automatic illumination. IP67-rated anodized aluminum unibody case.
- Simarine App Integration: Monitor live data, configure settings, and upgrade firmware via the mobile application.
Package Contents

Image: The Simarine Pico monitor and the SC303 combo shunt, key components of the set.
The Simarine Pico One Battery Monitor Set includes the following components:
- PICO battery monitor
- SC303 shunt
- Data cable (5 meters)
- Shunt cover
- Fuse protected voltmeter cable (3 meters)
- Temperature sensor with connector (1 meter)
- Mounting template
- Quick guide
- Screws, threaded rods, nuts, brackets
- Double sided tape
Installation Guide
Shunt Wiring
Proper wiring of the SC303 shunt is crucial for accurate monitoring. Follow these guidelines:
- If the system voltage does not exceed 35V, the shunt can be wired to either the LOW (-) or HIGH (+) side.
- If the system voltage exceeds 35V, the shunt must be wired to the LOW (-) side.
- This wiring flexibility is convenient for retrofitting into existing boats, campervans, trailers, and RVs.
For detailed wiring diagrams and mounting instructions, refer to the included Quick Guide and mounting template.
Operation
PICO Monitor Display

Image: The Pico One display showing battery state of charge, voltage, remaining ampere hours, and charge/discharge current.
The PICO monitor provides real-time data on your system. The high-resolution 3.5" IPS screen displays critical information at a glance:
- Battery Voltage: Current voltage of your battery bank.
- State of Charge (SoC): Percentage of remaining battery capacity.
- Remaining Ampere Hours (Ah): Total usable capacity left.
- Time to Charge/Discharge: Estimated time until full charge or discharge based on current usage.
- Battery Compartment Temperature: Temperature measured by the included sensor.
Navigate through different screens using the touch controls on the display to view data for tanks, temperatures, and other connected sensors.
Simarine App

Image: The Simarine mobile application displaying battery, tank, and temperature data on a smartphone.
The Simarine App extends the functionality of your Pico One monitor, allowing you to access data and manage settings remotely.
- Live Data Monitoring: View real-time data for batteries, tanks, temperatures, and barograph readings directly on your smartphone or tablet.
- Configuration: Adjust settings and preferences for your Pico system.
- Firmware Upgrades: Keep your Pico monitor updated with the latest features and improvements through the app.
Download the Simarine App from the App Store (for iOS devices) or Google Play Store (for Android devices).
Maintenance
The Simarine Pico One Battery Monitor is designed for durability with its IP67-rated anodized aluminum unibody case, making it water- and dust-resistant. To ensure optimal performance and longevity:
- Cleaning: Wipe the display and casing with a soft, damp cloth. Avoid abrasive cleaners or solvents.
- Firmware Updates: Regularly check for and install firmware updates via the Simarine App to benefit from the latest features and bug fixes.
- Connection Checks: Periodically inspect all cable connections to the shunt and monitor to ensure they are secure and free from corrosion.
Troubleshooting
If you encounter issues with your Simarine Pico One Battery Monitor, consider the following common troubleshooting steps:
- No Display/Power: Ensure all power connections are secure and the fuse on the voltmeter cable is intact.
- Inaccurate Readings: Verify that the shunt is wired correctly according to the installation guidelines (especially for systems exceeding 35V). Check all sensor connections.
- App Connectivity Issues: Ensure Bluetooth is enabled on your mobile device and the Pico monitor. Restart both the app and the monitor if necessary.
- Firmware Update Failure: Ensure a stable internet connection during updates and that your device has sufficient battery.
For persistent issues, refer to the detailed troubleshooting section in the full user manual or contact Simarine support.
Specifications
| Feature | Detail |
|---|---|
| Manufacturer | Simarine |
| Model Number | pico_one |
| Item Weight | 2.67 pounds |
| Product Dimensions | 1 x 1 x 1 inches |
| Country of Origin | Slovenia |
| Color | Black |
| Included Components | SC303 (Shunt) |
| Battery Compatibility | Lead Acid & Lithium (LiFePO4, AGM, GEL, Deep Cycle, Wet Free, Wet Low) |
| Display | 3.5" IPS screen with Gorilla Glass, polarizing filter, auto illumination |
| Protection Rating | IP67 (water- and dust-resistant) |
Warranty and Support
Warranty Information
The Simarine Pico One Battery Monitor Set comes with a 3-year warranty from the date of purchase. Please retain your proof of purchase for warranty claims.
Technical Support

Image: Options for technical support, including email and video call.
For technical assistance, questions, or support, please contact Simarine directly. You can typically find contact information on the official Simarine website or through the Simarine App.
- Online Resources: Visit the Simarine website for FAQs, detailed manuals, and software downloads.
- Email Support: Send your inquiries via email for written assistance.
- Video Call Support: Schedule a video call for personalized technical guidance.
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