Wharfedale Pro EZ-USB Operating Manual And User Manual page 7

. Battery Charge Status/Battery Empty
i. Normal operating status
The full battery LED indicates the battery inside EZGO is fully charged and will last 6-8 hours.
When the low battery LED is displayed and flashes, it indicates the battery will last 15 minutes
or less. EZGO will power off when the battery is exhausted. Recharge the battery for continued
portable use.
Caution: When the low battery LED is flashing, please turn Power/Volume knob to "OFF"
and recharge the battery as soon as you can, or you can plug in the external power supply
immediately.
The Battery Empty LED indicates either a battery is not installed or if it is installed there
may be a problem with it. If a battery is installed and the Battery Empty LED is illuminated
check to make sure the connecting wires are secure and the battery is not damaged. If it is a
replacement battery check to make sure it is qualified.
ii. Charging status
When connected to mains, EZGO will immediately enter charging status. After 5 minutes the
remaining charging time can be estimated as follows:
a. If 3 Battery Charge Status LEDs are flashing in turn, 6-8 hours are needed for the
battery to be fully charged.
b. If 2 Battery Charge Status LEDs (Full and Half battery LED) are flashing in turn,
5 minutes to 4 hours are needed for the battery to fully charged.
c. If there is only one Battery Charge Status LED (Full) displayed and it is non-
flashing, the battery is fully charged and EZGO can be normally used
and operated.
2. External Power
When EZGO is connected to an external DC or AC power supply, the "External Power" LED
illuminates.
Battery
Battery is installed here.
Caution: Danger of explosion if battery is incorrectly replaced. Replace only with the same or
equivalent type. Contact the service centre to ask for the help on this replacement.
EZGO Professional Portable Amplifier System
6