LifePO4 Battery Monitors & Shunts

These devices are invaluable when it comes to maintaining a healthy battery. 

Imagine driving a car with no fuel gauge and you will understand the importance of knowing when you will run out of fuel.

Battery Monitors or shunts as they are often called monitor the energy status your battery in real time. 

They provide lots of very useful data!

I personally like the Victron Smart shunts, they give lots of data and i can see everything using their downloadable App.

You cannot rely on voltage to determine a lifepo4 battery state of charge!

A battery shunt is an electrical component used to measure the current flowing in and out of a battery. It works by creating a small voltage drop across a known resistance in the circuit, and then measuring that voltage drop to determine the current flow.

The shunt is typically a small, precision resistor that is placed in series with the battery, between the battery negative and the load or charging source. When current flows through the shunt, it creates a voltage drop across the resistor that is proportional to the current. The shunt is designed to have a very low resistance, typically only a few milliohms, so that it does not significantly affect the overall circuit performance.

To measure the current, a voltmeter is connected across the shunt, and the voltage drop is measured. By knowing the resistance of the shunt and the voltage drop, the current flow can be calculated using Ohm's Law: Current = Voltage / Resistance.

Battery shunts are commonly used in battery monitoring systems to measure the state of charge and discharge of batteries, and to protect them from overcharging or over discharging. They can also be used in solar power systems to monitor the charging and discharging of batteries, and to ensure that the battery bank is functioning properly. Battery shunts are an important tool for accurately monitoring and maintaining the health of batteries in a variety of applications.