RV Battery Monitoring

RV Battery Monitoring

Boondocking or "dry camping" in an RV power meter with out a battery monitor is like driving a car and not using a fuel gauge.

For those who fill your tank up everyday and by no means drive additional than to the corner store, this strategy can work just fine. But when you are going to do any kind of serious camping without electrical hookups or a daily dose of generator, it is essential that you simply preserve a detailed eye in your batteries. This is especially vital when counting on photo voltaic, because you'll hardly ever know for sure what state of cost the sun has left you with.

Batteries will final longest for those who never cycle them under 50% capability, and going over eighty% drained starts to noticeably damage even the most effective "deep cycle" batteries. In case you use the "lights are getting dimmer" methodology to inform that your batteries are running down, they may almost definitely be permanently dead within a year. Not good – particularly when you’ve invested in expensive AGM batteries.

Voltage Metering:
The best option to regulate your batteries is by way of a voltage meter. A fully charged 12V battery will read 12.73 V, at 50% capability 12.10 V, and when you might have just 20% left (important territory!) 11.sixty six V. The Oliver trailer includes a system status panel that can show you your battery voltage, and by keeping watch you can get a way for a way you're doing.

But there is a BIG catch. To get an accurate and meaningful voltage reading, your batteries must have been sitting idle for at the very least six hours, and preferably twenty four. Meaning no lights on, no charger linked, no photo voltaic running – primarily no use whatsoever.

If the battery will not be nicely rested, significantly whether it is currently getting used (even if just to energy a light), the voltage reading is going to be off – and therefore practically useless.

Imagine if your car’s gas gauge was only accurate after you had been pulled off the highway for six hours. That is not significantly conducive to getting wherever….

Consider the voltage meter to be essentially just a "guess gauge", and never a gasoline gauge.

Specific Gravity Testing:
It's also possible to very accurately test the state of charge of effectively rested flooded lead acid batteries by utilizing a hydrometer to measure the precise gravity of every particular person battery cell. However doing this entails sucking up battery acid right into a glass tube. Not enjoyable, or typically practical.

In a car, this would be akin to pulling off the road, letting your engine cool, after which sticking a hose into your fuel tank to see how a lot fuel remains. You really don’t wish to be doing this. Trust me.

Battery Displays:
A real battery monitor works by measuring the present flowing into and out of your battery via a really accurate shunt. Once the monitor detects that your battery is full, it keeps track of each amp of outflow, and it offers you a percentage remaining readout or a simple to read empty to full bar graph.

This at last provides you a usable "gas gauge" view of the sate of your batteries.

Battery displays are not cheap, however they are value it. In case you are really going to be using your batteries for more than a day or of disconnected camping, I consider a proper battery monitor to be important equipment