General

 

At EPS, we deliver on our promise of superior customer service by being available to perform your battery maintenance services any time with 24 X 7 X 365 scheduling available.  Proper maintenance will prolong the life of a battery and will help enable the battery to satisfy its design requirements. A good battery maintenance program will serve as a valuable aid in maximizing battery life, preventing avoidable failures, and reducing premature replacement. Personnel knowledgeable of batteries and the safety precautions involved shall perform battery maintenance.

 

Inspections

 

Periodic inspections provide the user with information for determining the condition of the battery. The frequency of the inspections should be based on the nature of the application and may exceed that recommended herein. All inspections should be made under normal float conditions. For specific-gravity measurements to be meaningful, the electrolyte must be fully mixed. Electrolyte mixing is unlikely to exist following a recharge or water addition. Measurements should be taken in accordance with the manufacturer’s instructions. Refer to the annexes for more information.

 

Monthly

 

Inspection of the battery on a regularly scheduled basis (at least once per month) should include a check and record of the following:

a. Float voltage measured at the battery terminals

b. General appearance and cleanliness of the battery, battery rack or battery cabinet, and the battery area

c. Charger output current and voltage

d. Electrolyte levels

e. Cracks in cells or evidence of electrolyte leakage

f. Any evidence of corrosion at terminals, connectors, racks, or cabinets

g. Ambient temperature and ventilation

h. Pilot cells (if used) voltage and electrolyte temperature

i. Battery float charging current or pilot cell specific gravity (For lead-antimony cells, specific gravity is preferred. Contact the manufacturer for specific recommendations.)

j. Unintentional battery grounds

k. All battery monitoring systems are operational (if installed)

 

Quarterly

 

At least once per quarter, a monthly inspection should be augmented as follows. Check and record the following:

a. Voltage of each cell

b. For lead-antimony batteries, specific gravity of 10% of the cells of the battery and float charging current

c. For technologies other than lead-antimony, if battery float charging current is not used to monitor state of charge, specific gravity of 10% of the cells of the battery

d. Temperature of a representative sample of 10% of the battery cells (Example for a sixty cell string, measure the temperature of every tenth cell for a total of six cells.)

 

Yearly

 

At least once each year, the quarterly inspection should be augmented as follows. Check and record the following:

a. For lead-antimony batteries, specific gravity of all cells of the battery

b. For technologies other than lead-antimony, if battery float charging current is not used to monitor state of charge, specific gravity of all cells of the battery

c. Cell condition [This involves a detailed visual inspection of each cell in contrast to the monthly inspection (Review manufacturer’s recommendations).

d. Cell-to-cell and terminal connection resistance

e. Structural integrity of the battery rack and/or cabinet

 

Special inspections

 

A complete set of specific-gravity readings should be recorded upon initial installation and after two years of service on all cell types.

If the battery has experienced an abnormal condition, an inspection should be made to verify that the battery has not been damaged. Contact the battery manufacturer for assistance.