Nos marques

{"support":{"yesButton":"Oui","noButton":"Non","feedback":{"title":"Quelles améliorations pouvons-nous apporter ?"},"submitButton":"Soumettre","successMessage":"Merci de nous avoir fait part de vos commentaires.","title":"Cela vous a-t-il été utile ?","feedbackPercentLabel":"personnes ont trouvé cela utile","captcha":{"error":"Veuillez cocher la case appropriée."}}}

Consulter notre FAQ

{"searchBar":{"inputPlaceholder":"Rechercher par mot-clé ou poser une question","searchBtn":"Rechercher","error":"Veuillez saisir un mot-clé pour effectuer une recherche"}}

Reasons a Smart-UPS Will Transfer to Battery


When will my UPS switch to battery?

Product Line:



All models, All Serial Numbers


Normal Operation.


Smart-UPS protect data by supplying network-grade battery backup when power fails. Computer hardware is protected and system life extended through superior full-time multistage surge suppression and noise filtering. The Smart-UPS can switch to on-battery operation as a result of power disturbances or software initiated commands. There is a common misperception that a Smart-UPS will use its battery based only on voltage fluctuations. The following list provides the possible causes for a Smart-UPS switching to battery operation, along with a brief definition of each.

No Voltage (Blackout): A total loss of utility power.

Low Voltage (Brownout): A decrease in voltage levels. Sometimes this is not visually noticeable.

High Voltage (Over Voltage): A surge is a short-term increase in voltage.
A spike is an instantaneous dramatic increase in voltage.

Total Harmonic Distortion (THD): Periodic distortion of the sine wave. Harmonics add to the fundamental frequency in magnitude.

Change in Voltage (dv/dt): Rapidly changing voltage. If the voltage increases or decreases rapidly, the Smart-UPS will transfer to battery because the Smart-UPS does not know how high or how low the voltage will go.

Frequency Changes (Hz): Deviation from the nominal 60Hz in North America.

Computer Interface/Accessory Issues

A Smart-UPS has a microprocessor inside which allows communication with APC's PowerChute software, APC Accessories, and other native UPS shutdown programs for various operating systems. Interaction with these products could cause a Smart-UPS to operate on battery. A Self-Test or Runtime Calibration can be initiated through a graphical user interface, command prompt, or even when there is a communication problem.

Before concluding that the Smart-UPS is malfunctioning merely because it is operating on battery, be sure to consider all of the above possibilities.
En savoir plus
En savoir plus

Vous ne trouvez pas ce que vous recherchez ?

Contactez notre service client local si vous avez des questions ou si vous avez besoin de plus de détails ou d'une assistance technique.