Troubleshooting the Replace Battery LED on a Smart-UPS

Solution


The Replace Battery LED is designed to illuminate one to two months before the battery actually has to be replaced.

If the Replace Battery LED is lit, then perform the following steps, regardless of warranty status:

1. Check the battery voltage using PowerChute PLUS software or a SmartSlot accessory. If the Smart-UPS (not an XL model) has been charging for 3 hours, then the battery voltage should be around 27.2Vdc or 54.3 Vdc, depending on the model. This can also be verified if the battery capacity bar graph does not go all the way to 100% after 3 hours. Confirm that all battery LEDs are working by clicking on "Test UPS Alarm" through PowerChute plus or through the SmartSlot accessory interface. If the above conditions are not met, it is likely that the battery charger is broken and the unit will need to be replaced.

2. If possible, charge the unit for 24 hours or at the very least, charge a standard unit for 3 hours and an XL for 9 hours. The Smart-UPS will charge whether it is on or off. The unit will charge whether there is equipment plugged in or not. However, in environments where the power quality is poor, it is recommend that the unit be off during this charging period. As long as the Smart-UPS is on and able to supply power to your equipment, it is possible that it may switch to battery operation which will lengthen its recharge time.

3. Run a self-test. The Replace Battery LED should clear.

If the UPS fails the self-test or the LED remains illuminated:

4. Turn the UPS off and restart it to initiate a self-test. If the Replace Battery LED remains lit, then either the battery or the UPS needs to be replaced. Note: The battery may be bad as a result of the age, high temperature, improper ventilation, overuse of the battery due to a poor power quality environment, non-APC battery in use, or an internal UPS fault. Contact Technical Support to determine the proper course of action.



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