JLG 15/20MSP Operator Manual - Manual (Page 31)

SECTION 3 - MACHINE CONTROLS, INDICATORS AND OPERATION
3121230 – JLG Lift – 3-5
power will also be reduced to maintain a maximum internal
temperature.
3. When the GREEN ‘CHARGED’ LED turns on, the batteries
are completely charged.
The charger may now be unplugged from AC power (always
pull on plug and not cord to reduce risk of damage to the
cord). If left plugged in, the charger will automatically restart
a complete charge cycle if the battery pack voltage drops
below a minimum voltage or 30 days has elapsed.
4. If a fault occurred anytime during charging, a fault indication
is given by flashing the RED ‘FAULT’ LED with a code corre-
sponding to the error.
There are several possible conditions that generate errors.
Some errors are serious and require human intervention to
first resolve the problem and then to reset the charger by
interrupting AC power for at least 10 seconds. Others may be
simply transient and will automatically recover when the fault
condition is eliminated. To indicate which error occurred, the
RED ‘FAULT’ LED will flash a number of times, pause, and
then repeat.
[1 FLASH] Battery Voltage High: auto-recover. Indicates a
high battery pack voltage.
[2 FLASH] Battery Voltage Low: auto-recover. Indicates
either a battery pack failure, battery pack is not connected to
charger, or battery volts per cell is less than 0.5 VDC. Check
the battery pack and battery pack connections.
CHARGE COMPLETE
GREEN (TOP) LED ON
100% Complete
CHARGING PROBLEM
RED (BOTTOM) LED ON
See Flash Codes following