Solutions | Battery Monitoring

Battery Monitoring

Knowledge Is Power

MPI SmartGauge Battery Monitor

Users of lead acid batteries have long suffered from a fundamental lack of information. The symptoms are severe and all too familiar:

  • Short battery life
  • Poor battery performance
  • Dead batteries

Without proper monitoring or management, batteries will continue to discharge until internal damage occurs. The consequence of over-discharging your battery is that it stores less energy the next time you charge it. Repeating this cycle diminishes how much energy it stores, and therefore it becomes easier and easier to drain your batteries. The result is poor performance, dead batteries, and shorter battery life.

A battery monitor is simply a fuel gauge for your battery. Without accurate power monitoring, battery users will inadvertently over-discharge their batteries. Historical technologies for battery monitoring – namely traditional ampere hour (AH) counting, voltmeters, and using ohmic measurements – have failed to deliver an accurate and power-efficient monitor.


Why Merlin Battery Monitors Work Better

Merlin Power Systems has developed monitors based on proprietary battery-modeling algorithms.These provide extremely accurate measurements of charge and equip users with the knowledge they need to avoid the battery death spiral.

Accurate State of Health (SoH) monitoring and State of Charge (SoC) monitoring means high-performance batteries with a longer life.

Knowledge Is Power

Additional benefits of Merlin battery monitors:


Accurate State of Health (SoH) and State of Charge (SoC)


Never run out of synchronization


Accurate enough for generator start / stop and dynamic load shedding


Easy to install and simple to use


Automatically adjusts for battery age and temperature


Integrates with Merlin’s dead battery protection and split charging solutions


Increases fuel efficiency