#12 volt battery monitor for rv crack#

This is like your car trying to tell you miles-per-gallon without knowing how fast you were driving. Battery voltage is a moving target.Д«attery monitors also display usage statistics (Amp-hours consumed). Battery voltage can go up or down just because it got colder or hotter. ItвЂ™s nearly impossible to total the number of Amps being absorbed when you donвЂ™t know how efficiently they are being absorbedДЄ battery monitorвЂ™s state of charge computation is like a gas gauge вЂ“ but imagine the level of gas in the tank (battery voltage) is always fluctuating.

A batteryвЂ™s voltage varies significantly due to temperature, size, discharge rate, age, how recently it was discharged, etc.Batteries lose capacity over time which the battery monitor cannot accurately account for.The battery monitor works by using voltage and current entering and leaving the battery. But, battery monitors are pretty close and are (way) better than nothing.ДЄ battery monitor is often compared to the gas gauge in your car, but that is not a good analogy. In short, their figures are inaccurate due to variability in how batteries function. The thing is, battery monitoring is not an exact science. i.e., if solar panels are generating +10A of current, and you are consuming (-6A) of current, the monitor displays positive 4A of current. The battery monitor shows us the вЂњnetвЂќ Amp current at any time. The shuntвЂ™s small data wire provides that data to the monitor display screen. The shunt is typically wired to the positive and negative terminals on the battery. WeвЂ™ve got the higher end Victron BMV700.ДЄll current in or out of the battery goes through the shunt and gets measured. Alas, when we designed our solar system this product wasnвЂ™t on the market. If youвЂ™re going to be running any devices that potentially draw more than 1,000 watts, go for AiLiвЂ™s 350A version. But if the shunt ever fails, youвЂ™ll have to rewire things because you can draw from your batteries. If nothing breaks and you can deal with these issues, youвЂ™ll be pretty stoked to pay so little.

Super short 2вЂІ ft cable means you have to splice on additional cable to put the monitor display more than 2вЂІ ft from the batteries.

Hole for mounting is non-standard an unusual 2-1/8вЂі hole saw.

#12 volt battery monitor for rv crack#

The shunt housing is plastic which can crack when torquing the connections Bad instructions, and no technical specs.Display backlight stays lit whenever current going in or out, which can be hours at a time.ItвЂ™s pretty lacking on all other fronts though. It gives us the basics: the batteryвЂ™s state of charge (itвЂ™s remaining power), and how many amps are going in or out of the batteries. The AiLi battery monitor is the kind of knock-off we are all familiar with: basically functional, but suspiciously cheap.