Gamatronic POWER Plus Premium SA 15 User Manual page 20

3.2.1.2 BATTERY MODE
When the UPS is operating in battery mode, the Main Screen first displays the message: UPS ON,
BATTERY MODE.
As the battery discharges, the number of "stripes" on the battery icon decreases.
12 P+ Premium SA, 15 kVA, rel. 1.4