Don’t rely on SOC with your batteries.

Don’t rely on SOC with your batteries.

It can hide the true health of your house batteries or allow you think your 12v appliance is faulty.

It is essential for RV house batteries to provide consistent and reliable power output.  Voltage testing involves measuring the voltage of a battery at a specific point in time, typically when the battery is at rest (no charging or discharging).  It gives insight about the state of charge (SOC).   The snapshot or SOC might look rosy but scratch the surface of the battery and you might well find that the battery does not have the performance you need to run your rig either over time, or when it is underload.

With Lester discharge testing the battery is discharged at a controlled rate over a specified period of time until it reaches a predetermined endpoint, such as a certain voltage level or capacity threshold.  This method provides information about the actual capacity of the battery, its ability to deliver energy over time, and can reveal any issues with individual cells within the battery pack.  It is like a beep test that rugby players perform to see if they can handle the jandel.

A voltage test can be performed easily, is quick and is a tool that a RV technician uses in their day to day work.  Taking the time to perform a discharge test will confirm whether it is the health of the battery that is allowing the appliances to fail in the RV or that it is the installation/ and or appliances that are failing.

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