Maintenance schedule batteries
The maintenance schedule applies to batteries made by UPLUS and with the following serial names: US, USL, USF, and for batteries made by XLENT POWER with serial names XLT and XLL. For maintenance instructions see separate document "care instructions valve-regulated lead-acid battery”.
Series designation | Battery type | Replace battery after |
|---|---|---|
XLT | 3-5 years | 2-3 years |
US | 6-9 years | 3-5 years |
USL | 10-12 years | 5-7 years |
USF | 12 years | 8-10 years |
* battery life depends mainly on ambient temperature and charging current. An AGM battery should never be charged with more than 30% of its rated capacity. The battery will be fully charges, but the charning current must not excced 30% of its rated capacity. | ||
Charging voltage from power supply | 12 V units | 24 V units | 48 V units |
|---|---|---|---|
Minimum charging voltage | 13.6 V | 27.2 V | 54.4 V |
Maximum charging voltage | 13.7 V | 27.4 V | 54.8 V |
Tolerance | +/- 0.5% | +/- 0.5% | +/- 0.5% |
terminal voltage | After 15 minutes of rest / charging. |
|---|---|
Minimum terminal voltage | 12.9 V |
Maximum allowable difference between battery pairs | 0.5 V |
New battery with terminal voltage below 12.0 V is defective and should be reported to the supplier. | |
Temperature in battery backup | Temperature |
|---|---|
Lowest | 15 ° C |
Recommended | 20 ° C - 25 ° C |
Highest | 32 ° C |
Warranty is valid only if the temperature is within these levels. | |
Installation control batteries
Check that the battery is completely clean and that the terminals are free from corrosion.
Check and note the temperature in the battery compartment.
Check the terminal voltage of each battery before installation. If the difference between the batteries exceeds 0.5 V, the battery loop should be equalized in connection with installation. If any battery has a terminal voltage of less than 12V, this battery must be replaced with a new battery and reported to the supplier.
Connect the battery and check the charging voltage. The charging voltage should be between 2.25 V - 2.27 V per cell = between 13.5 V - 13.62 V for a 12 V system and between 27.0 V - 27.24 V for a 24 V system.
Year-round inspection
Check that the battery is completely clean and that the terminals are free from corrosion. If there is corrosion on the terminals: Check that the battery does not leak acid. Then clean the terminals and reconnect the battery. Then lubricate with battery terminal grease over the connected terminal.
Check and note the temperature in the battery compartment.
Check and note the average current.
Check that all connections are securely fastened and that there is no gap in the connection.
Check that the fan (if units have a fan) is working properly. Clean the fan if necessary.
Check the charging voltage by measuring with a multimeter between the connection points + & amp; -. The charging voltage should be between 2.25-2.27 volts per cell = between 13.5-13.62V for a 12V system and between 27-27.24V for a 24V system.
Turn off the rectifier and let the batteries rest for 10 - 15 minutes. Then measure the terminal voltage of each battery. After resting, the terminal voltage must be between 12.9 V - 13.5 V.
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User manual and other documents are in the original language in Swedish. Other languages may be machine translated and/or not reviewed, errors may occur.