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Battery bar(s) in solid indicating the unit is running in Battery Mode. The bars show estimated
remaining battery power.
4 solid bars: Battery is Full
Battery
3 solid bars: Battery capacity with 75% remaining
Inverter
2 solid bars: Battery capacity with 50% remaining
Mode
1 solid bar: Battery capacity with 25% remaining
No bar: Battery is empty. Inverter will shut down when it reaches under-voltage shutdown
point.
Note: This indicator is for reference use only. It varies depending on battery health or type
used.
Battery bar(s) with the last bar flashing indicates the unit is running in By-Pass mode and the
battery charging process is in progress. The charging stages are indicated by the number of
bars.
Charger
4 bars in solid: indicates the battery is fully charged and it is in Float stage
Mode
Top bars flashing: indicates the battery is in Absorption charging stage
Second top bar flashing: indicates the battery is in Bulk charging stage and the
battery is > 27.0V
Second bottom bar flashing: indicates the battery is in Bulk charging stage and the
battery is > 25.0V
Bottom bar flashing: indicates the battery is in Bulk charging stage and the battery is
> 23.0V
No bar: indicates the battery is in Bulk charging stage and the battery is > 21.0V
Battery icon flashing: indicates the battery is in Bulk charging stage and the battery
is below 21.0V
Display
Character
'A' icon On indicates the display shows battery discharge current (28A as shown)
'kW' icon on, it indicates the display shows AC Output power in kW (0.80kW = 800W as
shown)
'V' icon on, it indicates the display shows battery voltage in V (12.8V as shown)
Warning icon on, it indicates the display shows Error/Warning Code (E01 as shown, Battery
Low Disconnected error)
Equalization on Flooded battery is in process. This function is available for use with
Flooded battery type only. The display will also show the equalization voltage during the
process. Follow the instruction provided by the battery manufacturer when performing the
equalization process.
Indicating the Main unit firmware revision (R:1.0 shown)
Indicating the Display Panel firmware revision (r:1.0 shown)
WhisperPower Inverter / Battery Charger
Meaning
21
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