Marine Battery Monitoring

A battery monitoring system (BMS) tracks voltage, current, charge levels, and overall battery health, helping to optimize performance and extend lifespan.

Baywatt battery monitors provide real-time data on your battery’s status, allowing you to:

- Prevent overcharging or deep discharge, which can damage the battery.

- Monitor power consumption to optimize efficiency.

- Detect issues early, ensuring reliable power for your boat.

A good battery monitor is essential for maintaining battery health, especially in marine environments where power reliability is crucial.

LED battery monitors provide superior contrast, better readability in bright conditions, and lower power consumption compared to LCD displays.

Key advantages of OLED technology for marine use:

- High contrast: Displays clear, sharp readings even in direct sunlight.

- Lower power draw: Consumes less energy, preserving battery life.

- Wide viewing angles: Ensures easy readability from different positions.

- Instant response: Faster refresh rates for real-time battery monitoring.

Baywatt’s OLED battery monitors offer crystal-clear visibility and efficient performance, making them the best choice for marine and off-grid applications.

Baywatt dashboard-mounted displays offer four options to monitor your electrical system:

- Single Voltmeter – Displays real-time battery voltage.

- Dual Voltmeter – Monitors two battery banks simultaneously (house + starter battery).

- Single Ammeter – Measures current draw to track power consumption.

- Volt & Ammeter Combo – Provides both voltage and current readings for full system monitoring.

Each model includes a 100A ultra-compact shunt, making installation easy and space-efficient. They are compatible with all mounting brackets available on the website, ensuring a seamless fit for your dashboard setup.

An integrated battery monitoring panel consolidates all essential battery data into a single display, making battery management simpler and more efficient.

Key benefits:

- Real-time monitoring of voltage, current, and charge status.

- Easy-to-read display with OLED or LCD options for clear visibility.

- Space-saving design, eliminating the need for multiple gauges.

- Includes a 100A ultra-compact shunt, ensuring accurate readings.

- Compatible with all Baywatt brackets for seamless dashboard installation.

Baywatt’s battery monitoring panels provide a professional, clean setup, helping you optimize power usage and extend battery lifespan on your boat.

Unlike an MPPT or built-in battery systems a coulometer is a dedicated energy tracker that provides the true state of charge, by measuring real-time charge and discharge currents. It calculates the actual amp-hours used and remaining instead of estimating

A coulometer shows accurate battery percentage instead of relying on voltage fluctuations. It tracks real-time charge and discharge currents giving a precise power overview. Once reset at full charge it allows you to calibrate battery capacity ensuring accurate tracking

We recommend resetting the coulometer twice a year once in winter and once in summer, when the battery is fully charged. This ensures reliable battery monitoring so you never run short on power unexpectedly. Baywatt’s coulometer provides a real-time view of your battery status helping you manage energy efficiently.

Yes, Baywatt’s OLED monitors are fully compatible with lithium batteries, AGM, and lead-acid systems. They provide real-time voltage and current readings up to 100A, ensuring precise monitoring of charge and discharge cycles.