User Manual

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• Indicates there may be connection issues within each series connection
or parallel strings.
1. Clean and inspect all cabling and connections. Physically disconnect
cable, inspect for terminal concaving (Over torqued), grease and
re-torque connections.
*Specific gravity readings vary more than .030 in multiple strings of batteries
indicates an imbalance of charge. If specific gravity readings continue to
vary after charging each string individually a corrective equalization charge
may be necessary.
• Capacity of the battery bank has decreased.
• Capacity loss may be due to sulfation. A balance charge and/or
equalization may be necessary.
• Capacity loss may be due to overheating. Verify that temperature sensors
are properly mounted and verify cell temperatures.
• Capacity loss may be due to over-discharging the battery bank.
Capacity of the battery bank may no longer support an increase in load.
• Battery cases are bulging on the sides.
• If case bulging is a concern upon receipt of new product, please notify
your Distributor and/or forward clear photos via a Technical Support
Ticket or email to support @rollsbattery.com for review.
• Due to the weight of electrolyte, some case bulging is normal.
New battery cases will “relax” after filling. Verify that electrolyte levels
have not dropped below the top of the plates before attempting to
charge and top up with distilled water as necessary.
• In the case of excessive bulging- your batteries may have been exposed
to temperatures of over 51°C (125°F). This high temperature has caused
the plates/chassis to swell and expand. There is no fix for this and
eventually the batteries will fail prematurely.
• Your batteries may have frozen due to excessive cold temperatures.
A fully charged battery (specific gravity of 1.265) may freeze at -70°C
(-94°F) or more. A battery that is at 50% state of charge (specific gravity
of 1.200) may freeze at -7°C (20°F).