Rv battery monitor install11/25/2023 ![]() ![]() While voltmeters are cheaper and simpler than the shunt based type, its voltage readings don’t tell you anything about the battery’s performance or your power consumption, other than the amount of voltage stored in the battery at a given time. This type of battery monitor can even produce slightly different results with two similar house battery banks. This is not very accurate as voltage can fluctuate with changes in temperatures and humidity. ![]() Voltage-based battery monitors, which are often called voltmeters, measure battery voltage in real time but can only estimate the state of charge based on voltage. They cost a bit more than the simple voltage-based type, but it’s totally worth it. In summary, battery monitors that rely on shunts are more accurate. There are two types of RV battery monitor systems: voltage-based systems and shunt-based systems. Photo: welcomia / Getty Images Types of RV Battery Monitor and How They Work You only need to mount the monitor in a high traffic area and glance at it every now and then to keep an eye on your battery bank. When installed, the monitor will constantly measure the state of discharge of your battery and display it on the screen as a percentage. This is where a battery monitor for RV comes in. But it’s not very practical and convenient having to manually use a voltmeter to test the amount of voltage a battery has in store every now and then. It will also cost you hundreds of dollars to replace the battery bank, not to mention the money and time spent to rescue yourself from being stranded.įor this reason, every camper must check the state of discharge of their house battery regularly to make sure the battery is never too depleted. This is utterly important, since a dead or malfunctioning house battery can leave you stranded in the middle of nowhere. Doing so once or twice would not kill the battery off, but the more this happens, the shorter the battery’s lifespan. A recap of Battery 101 lessons: you should try your best not to deplete your 12 volt battery bank down to less than 50 percent depth of discharge. Perhaps one of the first things RV owners need to learn with regards to maintaining their home on wheels is the workings of their 12 volt house battery, and every related device and accessories designed to maximize battery’s lifespan and performance. Most Affordable Voltmeter: ProShopping DC Battery Meter.Best App-Control Voltmeter: ANCEL BM300 Bluetooth Battery Tester. ![]()
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