There are a lot of different factors to consider, and it can be hard to know what to look for and how to interpret the data. This post will teach you about the challenges of monitoring your campervan battery and what you can and cannot accurately measure, as well as provide tips for choosing a suitable battery monitor. SEE LATEST PRICE Why Do We Need A 12v Battery Monitor System?Ī battery monitor isn’t an essential component of a campervan electrical system. Suppose you have a small electrical system and don’t rely on it heavily. In that case, you can manage without a fancy battery monitor installed. With an active battery monitoring system, there is no need to worry!Ī battery monitor can indicate how much power the battery is receiving, how much you’re using, and how full the RV batteries are.Ī simple voltmeter is all you need.īut what if you want to monitor the battery bank and ensure it never runs out of power? In that case, you need an easy way to monitor it. The Bayite DC Digital Voltmeter & Ammeter is an ideal budget option and provides all this information. For example, the Innova 3721 only indicates the battery charge level. Others go further, like the Victron battery monitor BMV 712 indicating how many amp-hours remain and historical data. And it includes in-built Bluetooth communication for remote monitoring (within around 25ft of the vehicle).Īrmed with the monitor’s information, we can be relatively confident the battery health is ok and take action if it indicates a problem.īut before choosing the all-singing, all-dancing monitors, keep reading. Read more: The Best Power Management Systems for Campers and RVs The Challenges With Measuring A Battery’s ChargeĪ battery monitor is like a fuel gauge for the electrical system but much less accurate.Ī fuel gauge measures how much fuel is in a fixed-size tank and may indicate how many miles you have left in the tank.Ī battery monitor measuring voltage to indicate charge level isn’t wholly accurate because a battery’s capacity fluctuates depending on environmental conditions like temperature. The inaccuracy becomes more significant when the battery is in use. Some battery monitors measure amps used and amps supplied from charging sources.īattery efficiency also changes with environmental factors, how it’s used, and how deeply it’s discharged. So the monitor can’t accurately measure how much of the current supplied is absorbed. The upshot is that while battery monitors indicate the state of the battery, they cannot be 100% accurate always.
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