Battery Sensor
232,00 €
This sensor continuously monitors the voltage of the boat’s batteries. Whenever the battery voltage changes, a message with the latest measurement is sent to the Sense4Boat control center and compared with the configurable thresholds for diverse alerting conditions.
You can specify your own thresholds for low or critical battery voltages and get notified whenever those conditions occur. The sensor will also inform you when the boat’s batteries are charging and have stopped charging.
The sensor can be connected to two individual battery banks with unlimited number of batteries, using the provided 3m long cables.
1 YEAR SENSE4BOAT SUBSCRIPTION IS INCLUDED IN THE PRICE
After one year you can choose to continue using the Sense4Boat service for the price of 63€ per year.
Learn more about the Sense4Boat subscription here.
Battery Sensor at a glance
MONITOR TWO BATTERY BANKS
Connect the sensor to two independent battery banks with provided fuse prtected cables. Get voltage information and set independent alarms for each battery bank.
LOW VOLTAGE ALARM
Avoid damage due to sulfation and deep discharging and get notified whenever a low or critical voltage is detected.
LOW ENERGY CONSUMPTION
Having its own replaceable batteries, this device does not use the boat’s power. Low energy consumption means you will need to replace the battery only every several years.
REMOTE CHARGING MONITORING
Monitor the charging process and make sure it is done properly.
INTERNAL DATA BUFFER
When sailing far away from shore, out of reach of the NBIoT Network, the sensor will store all measured data, until connectivity is restored, at which time it will send all the stored data to the Sense4Boat control center, ensuring all measuremements and alerts are saved.
Prevent batteries from overheating
Battery voltage information is extremely important to determine the current situation and deciding at what point to start the charging. However, to ensure the safe charging of your battery, we also need the information of the battery temperature.
During the charging cycles, the batteries raise their temperature; only slightly with the healthy batteries, while with defective batteries in extreme cases it can come to the so-called “Battery boiling” and a potentially dangerous situation.
This is the exact reason, why our sensors are also equipped with a temperature reading, that detects each temperature change and alarms in case of potentially dangerous situations. By measuring the voltage and temperature of the battery, we can guarantee a safe battery charge at all times.
Increase the life expectancy of your batteries
Boat batteries are very expensive and usually last only for a couple of seasons. The main culprit for the pemanture battery death is the inproper maintenance; most of the battery producers specify a battery life of 7-10 years, however in the reality not many batteries live that long.
Maintaining marine batteries is very simple and can be summarized in just one sentence: the battery should be always stored in a fully charged state. If the battery is stored in partially discharged state, a chemical process of deposition of lead sulfate crystals occurs on lead plates. We call this process sulfation and it is sulfation which is responsible for the most common irreversible battery capacity reduction. The longer the battery stays is in the discharged state, more crystals precipitate on lead plates, which then progressively shrinks battery capacity.
Technical Specifications
| Dimensions | 124x60x26 mm |
| Weight | 160 g |
| IP rating | IP67 rated housing ensures device can withstand fine dust and high-pressure spray. |
| Installation | Compact and easy to install. |
| Operating temperature | -20°C to +85°C |
| Diagnostic LED | Diagnostic LED signifies operation status |
| Supported Battery Types | Package of 3 x AA, 6300 mAh (replaceable) |
| Battery life | Up to 5 years. Each sensor’s battery life depends on the number of messages the sensor sends – more messages mean a shorter battery lifespan. Solar panels connected to your boat’s battery also impact the sensor’s battery life, as voltage changes trigger more sensor messages, reducing lifespan. |
| NB-IoT | The battery sensor communicates directly to the Sense4Boat control center through the NBIoT network. NB-IoT (Narrowband Internet of Things) is a low-power wide-area (LPWA) network technology designed for devices that need to send small amounts of data over long distances efficiently. It is provided by leading telecom operators such as Deutsche Telekom, T-Mobile, A1, etc. |




