Serving the Power Industry Since 1980
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Electro-Test and

Maintenance, Inc.

P.O. Box 1527

Rapid City, SD


Battery System Services

Battery banks and charger systems are critical to the reliability of any protection and control system. Unfortunately these systems, whether flooded lead acid, NiCad, or VRLA types can sometimes be overlooked, however with NERC regulations many system now require time-based mandatory inspection and maintenance.
ETMI offers battery system services:

  1. Training for clients to perform proper monthly inspections
  2. Battery bank impedance testing
  3. Battery bank capacity discharge testing
  4. System Upgrades – specification, removal, installation, and commissioning services

We have capability to monitor real-time individual cell voltages and perform continual constant discharge current levels up to 750 amps.