The Hioki 3554 battery tester takes on-the-spot measurements of the internal resistance, voltage and temperature of lead-acid batteries, principally for UPS and similar applications, without needing to shut off the battery.
Instantaneous results, on a three-rank scale of Pass, Warning, or Fail, using a composite decision based on the internal resistance and the voltage. Resolution of 1uohm, necessary for high capacity batteries (of at least 500Ah).
Includes Hioki 9460 clip type temperature leads