Page 34 www.enersys.com Publication No. US-RE-IOM-002 January 2012
The following schedule is recommended for good maintenance and records. Readings should
be taken when battery is in float state of charge.
Monthly
• General appearance and cleanliness
• Charger output amps and volts
• Electrolyte levels
• Cracks in cells or leakage of electrolyte
• Evidence of corrosion at terminals or connectors
• Ambient temperature and condition of ventilating equipment
• Pilot cell voltage, specific gravity and electrolyte temperature
• Evidence of voltage leaks to ground
Quarterly
In addition to the monthly items also obtain and record the following:
• Specific gravity of each cell
• Voltage of each cell
• Total battery voltage
• Temperature of one cell on each row on each rack
AnnuaIIy
In addition to the quarterly items, also do the following:
• Check all bolted connections to see if retorquing is required. Tighten all bolted
connections to specifiications given in section 7.4.
• Check integrity of rack, if applicable.
THE ABOVE FREQUENCY OF RECORD TAKING IS THE ABSOLUTE MINIMUM TO
PROTECT THE WARRANTY. This data will be required for any warranty claim made on the
battery. For system protection and to suit local conditions/requirements, more frequent readings
(quarterly) are desirable. A sample record chart is provided. Make a copy of the chart to use for
your permanent records.
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