Rolls Surrette User Manual

42
• Confirm End Amps is programmed to 2-3% of C/20 (Series 4000) or 2-5%
(Series 4500 & 5000 with Advanced NAM).
• Decrease Bulk/Absorption/Boost Voltage in .2v to .4v volts increments.
• Decrease Absorption Time by 15 to 30 minutes increments as necessary.
Clean and inspect all cabling and connections. Physically disconnect cable,
inspect for terminal concaving (Over torqued), grease and re-torque connections.
• Specific gravity readings on individual cell(s) in a battery bank with multiple
series strings vary more than .020 while resting at Float voltage. (Ex 1.265,
(1.265, 1.240, 1.265…)
• Indicates there may be an imbalance of charge between parallel strings
of batteries.
• Disconnect parallel strings and charge each string individually to balance
charging. For systems with more than two parallel strings of batteries you
may find this is necessary 1-2 times a year to maintain balanced charging.
• Indicates there may be connection issues within each series connection
or parallel strings.
• Increase Bulk/Absorption/Boost Voltage by 0.2V increments.
• Clean and inspect all cabling and connections. Physically disconnect
cable, inspect for terminal concaving (Over torqued), grease and
re-torque connections.
* Specific gravity readings varying 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 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.