Semi-Annual Preventive Maintenance Requirements - Check integrity of battery cabinet. Visually inspect battery system for swelling, leaks, loose foreign objects, overheated or corroded cables and connectors, loose-fitting or damaged connections on batteries, and appropriate product labels related to safety and warning hazards. Load test each individual battery 9 AH or less using a Cell Tester Model: Cell 03-0224 or equivalent. Return the system to normal load and verify the output voltage. Calibrate as necessary. Clean and neutralize cell tops as required. Tighten all battery terminal connections to their proper specifications. Measure and record DC bus ripple voltage. Measure and record total battery float voltage. Record room ambient temperature...
