Ezgo PowerWise QE User Manual - Operating Instructions
Page 3.
E-Z-GO Division of Textron, Inc., 1451 Marvin Griffin Road, Augusta, Georgia
USA 30906-3852 Phone: 1-800-241-5855
OPERATING INSTRUCTIONS
1. With the enclosed case design, the charger may be
placed virtually anywhere, but the choice of place-
ment and orientation is extremely important. For
optimum performance and shortest charge times,
place the charger in an area with adequate ventila-
tion. The charger should also be placed in an area
that will be relatively free of dirt, mud, or dust since
accumulations within the fins of the charger will
reduce their heat-dissipating qualities. Optimal cool-
ing also occurs when the charger is placed on a hor-
izontal surface with the fins vertical. More airflow
from below the charger will help cool the fins, so
placement above open areas or areas with cut-outs
for airflow is desirable. As the charger may get hot
in operation, the charger must be placed such that
risk of contact by people is reduced. Wall mount or
shelf mount using #10-M5 screws. The charger’s
status display must be visible to the user.
2. Always use a grounded outlet. When using an exten-
sion cord, avoid excessive voltage drops by using a
grounded 3-wire 14 AWG cord no longer than 50’.
3. When plugged into the vehicle’s charger receptacle,
the vehicle is locked out of operation. The charger
will automatically turn on the charger’s LED and the
vehicle’s receptacle LED will start flashing GREEN
to indicate the battery is charging.
4. Once a minimum battery voltage of 2 volts per cell
(Vpc) is reached, the charger’s output current will
change from a trickle current to the full rated charg-
ing current. The length of charge time will vary by
how depleted the battery pack is, the input AC volt-
age, and/or charger ambient temperatures. The
charger’s LED and the vehicle’s receptacle LED will
flash a SHORT flash (off more than on) if charge is
80%.
5. When the charger’s LED and the vehicle’s recepta-
cle LED is continuously GREEN, the batteries are
completely charged. The charger may now be
unplugged from the vehicle. If left plugged in and the
battery pack voltage drops below a minimum volt-
age or 30 days has elapsed, the charger will auto-
matically restart a complete charge cycle.
6. If a fault occurred anytime during charging, a fault
indication is given by quickly flashing the RED LED
on the charger. The specific fault is indicated on the
charger by flashing RED a number of times, paus-
ing, and then repeating. There are several possible
conditions that generate errors. Some errors require
human intervention to first resolve the problem and
then to reset the charger by unplugging the DC cord
from the vehicle. Others may be simply transient
and will automatically recover when the fault condi-
tion is eliminated. If the AC voltage is interrupted
and restored, the charger will turn back on automati-
cally.
Visual LED Display Information
LED Operation Codes:
SHORT GREEN FLASH = less than 80% charged
LONG GREEN FLASH = more than 80% charged
SOLID GREEN = 100% charged
RED FLASH = fault code
LED Fault Code Display Information
LED Fault Code:
FLASH RED Light turns on briefly but nothing after that
- Check for valid AC voltage.
ONE RED FLASH - Charge Enable Fault: Poor con-
tact in DC connector or battery temperature fault:
battery temperature is greater than 122° F (50° C)
or less than 14° F (-10° C).
TWO RED FLASHES - Battery Voltage Fault: Battery
Pack is less than 36.0 Volts or more than 67.2 Volts.
Battery pack is too discharged or overcharged to be
charged.
THREE RED FLASHES - Battery Charge Timeout:
Charge time 12 hours exceeded. This may indicate
a problem with the battery pack (old battery pack) or
that the charger output current was severely
reduced due to high ambient temperatures.
FOUR RED FLASHES - Battery Fault: Charge time
exceeded. This indicates a problem with the battery
pack voltage not attaining the required nominal level
within the maximum time allowed.
SIX RED FLASHES - Charger Fault: an internal fault
has been detected. If Fault 6 is again displayed after
unplugging and then plugging the DC power cord,
the charger must be brought to a qualified service
center.
710-0035 Rev1
Introducing the
PowerWise
™
QE
48 Volt Battery Charger