User Manual

44
• Battery cover has cracked, shattered and/or dislodged from the case
• (Not affecting positive and negative terminals or connections).
• Ignition of hydrogen gas may have caused the battery cover to crack
or explode.
• This sometimes occurs during a charge where a loose connection at the
terminal sparked, igniting hydrogen gas from the cell.
• This may be the result of low electrolyte levels causing high cell temperature
and increased hydrogen gas. Check each cell and top up with distilled water
as necessary.
• A battery and/or cell(s) in the battery bank does not require watering.
• The battery may have a cell that has failed and no longer accepts
a charge.
• Verify specific gravity of all cells and voltage reading of each battery.
• Perform a load test to identify any cell failures.
• While charging, the battery bank does not reach the programmed
Bulk voltage.
• If the system is not reaching Bulk voltage the charge voltage and/or Amp
output to the battery bank may be too low. Verify that these meet Rolls-
recommended charging parameters for Flooded, AGM or GEL models and
that charge output (Amps) is sufficient to meet the capacity of the battery
bank. To ensure sufficient charge, output should be approximately 10%
of the Amp Hour capacity for Flooded battery banks.(Example: 1200AH
Battery Bank = 120 A charge output).
• Indicates that DC loads running on the system during the charge cycle
may be reducing the charge output to the battery bank, slowing down
the charging process.
• When a charge is initiated the voltage of the battery bank rises very quickly
and the charger goes quickly into the Absorption charge cycle or shuts off
charge to the batteries completely.
• This is often an indication of sulfated batteries which may be causing alower
than normal impedance in reference to the charger. Capacity of the bank will
be reduced and may be confirmed by running a load test.
• An increase in Absorption time may be necessary to desulfate the battery bank.
• If the battery bank is heavily sulfated, a corrective Equalization may be necessary.
Perform a corrective Equalization if specific gravity readings vary by more than
.030 between cells. Battery case has split or cracked originating from the sides.