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and at elevated temperatures the life is reduced. A maximum ambient operating temperature of 45°C/113°F must not be exceeded.
Sub-zero temperatures may cause electrolyte freezing and irreversible damage when the battery’s state of charge (SoC) is low:
Electrolyte Freezing Point
State of Charge (SOC)
0%
25%
40%
75%
100%
Freezing point
-23°C / -9°F
-27°C / -17°F
-37°C / -35°F
-48°C / -54°F
-59°C / -74°F
4.4 Charge Current Limits
Charging current in general should not exceed 30A/100Ah C20 rating.
5. Battery Maintenance
VISUAL INSPECTION
Check for any visible defects such as cracks, loose terminal posts and oxidized connectors. To avoid leakage currents and the
associated risk of fire, keep the battery dry and clean. Do not use any solvents or detergents. Avoid electrostatic charges. Discover
Maintenance Logs are online available online.
QUARTERLY MAINTENANCE
• Check/record battery voltage
• Deviation testing of battery voltages (deviations signal imbalance batteries)
• Deviation testing of battery temperatures (deviations signal short circuit cells)
• Check if connectors are firmly tightened
• Confirm DOD per battery does not exceed the allowed limit
• Confirm that charge settings correspond to recommendations
BI-ANNUAL MAINTENANCE
Further to the bi-annual maintenance, do the following:
• Inspect racks/cabinets for corrosion or loss of integrity
• Check/record if ventilation is sufficient.
• Check/record battery room temperature
• Check battery for cracks
• Check ground connections
6. Faults
Should faults be detected in the battery or the charging device, contact your servicing dealer immediately. Keeping records of all
measured data will simplify fault detection and corrective action. A service contract with your servicing Discover® dealer will help to
detect faults in time.
7. Transport
Be sure that all batteries are protected against short-circuit. Be sure to document and transport all batteries according to local
department of transportation rules and regulations. Material Safety Data sheets (MSDS) and Safety Data sheets (SDS) are available
online.
8. Recycling
Discover’s lead acid batteries are recyclable products. All Discover Factory Warehouses and servicing dealers are qualified to accept
and handle all used lead acid batteries. Contact Discover
®
or your servicing dealer for details.
9. Troubleshooting and Frequently Asked Questions
The following is a list of common concerns and questions regarding system setup, battery charging and maintenance procedures.
Please refer to these as general guidelines. For further assistance with your specific system setup, please contact your installer.
WHAT CAUSES THE BATTERY TERMINAL TO MELT?
Battery terminals melting is most common because of improper connections causing high resistance and heat generation.
