Energy Applications User guide

Monthly battery inspection
Should include the following:
• Endofchargevoltagemeasuredatbatteryterminal
• Endofdischargevoltagemeasuredatthebattery
• Generalappearanceandcleanlinessofbattery,batteryrackandbatteryarea
• Chargingcurrentandvoltage
• Electrolytelevels(floodedonly)
• Cracksincellcontainersorleakageofelectrolyte
• Anyevidenceofcorrosionatcellterminals,connectorsorracks
• Ambienttemperatureandconditionofventilationequipment
• Pilot-cellvoltage,electrolytetemperature(floodedonly)
• Recordfindingsclearlyanddateentries
Quarterly battery inspection
Should include the monthly observations, plus:
• Endofchargevoltageofeverycellandbatteryterminalvoltagemeasuredatbattery
• Endofdischargevoltageofeverycellandbatteryterminalvoltagemeasuredatbattery
• Temperatureofelectrolyteinrepresentativecell(s),typicallyonecell/tierdistributed
throughout battery
Annual battery inspection
Should include the following the quarterly observations, plus:
• Inter-cell/inter-unitconnectionintegrity,measuredwithDLRO
• Recordfindingsclearlyanddateoriginalandcopies
• Retorquetospecifiedvalue:
Battery Maintenance
Hydration
A battery, which has been over-discharged and left in a discharged condition without immediate recharge,
is subject to terminal damage known as “hydration.” This is a phenomenon in which the specific gravity of
the electrolyte has been reduced to a level so low that it permits the lead components to dissolve into the
electrolyte, totally destroying the cells. As a result, short circuits become so extensive that is almost impossible
to keep the cells charged. Finally, the cells experience total short circuit failure.
Hydration can be avoided by the use of low-voltage cut-out devices which disconnect battery from load after
the battery, discharged at its specified load current, reaches its designed cut-off voltage.
CPV 360, 430, 550, 660, 780, 890, 1000, 1100,
1220, 1330, 1440, 1880 & 2030
150 in-lbs 17 N-m
CPV 1550, 1660, 1770, 2190, 2340, 2500 100 in-lbs 11 N-m
VRS12-33 & 50
30 in-lbs 3.5 N-m
VRS12-75, 88, 100 110 in-lbs 12.4 N-m
D, K, L-CPS 100 in-lbs 11 N-m
VRS12-155F, 175F, 215F 110 in-lbs 12.4 N-m
Model Re-Torque Value
RS02061/0514/CD 13 www.cdtechno.com