JLG 15/20MSP Service Manual - Manual (Page 61)

SECTION 4 - CONTROL COMPONENTS
3121231 – JLG Lift – 4-5
4.4 BATTERIES - SERVICE PROCEDURES
Battery Replacement
JLG MACHINES EQUIPPED WITH DELTA-Q BATTERY CHARGERS
ARE DESIGNED FOR THE BEST PERFORMANCE WITH OEM FAC-
TORY APPROVED BATTERIES.
APPROVED JLG REPLACEMENT BATTERIES ARE AVAILABLE
THROUGH JLG’S AFTERMARKET PARTS DISTRIBUTION CEN-
TERS OR JLG’S AFTERMARKET PROGRAMS. FOR ASSISTANCE
WITH PROPER BATTERY REPLACEMENT, PLEASE CONTACT
YOUR LOCAL JLG SUPPORT OFFICE.
BATTERIES APPROVED BY JLG HAVE BEEN TESTED FOR COM-
PATIBILITY WITH THE ALGORITHM PROGRAMMING OF THE
DELTA Q BATTERY CHARGER TO OPTIMIZE BATTERY LIFE AND
MACHINE CYCLE TIMES. THE USE OF NON APPROVED BATTER-
IES IN YOUR JLG EQUIPMENT MAY RESULT IN PERFORMANCE
ISSUES OR BATTERY CHARGER FAULT CODES. JLG ASSUMES
NO RESPONSIBILITY FOR SERVICE OR PERFORMANCE ISSUES
ARISING FROM THE USE OF NON APPROVED BATTERIES.
Replacement battery(s) must be of equivalent voltage and
amperage output as the OEM battery(s) in order for the
machine to operate to as manufactured specifications.
Battery replacement part weight must also be equivalent
to OEM per battery, in order to maintain machine stability
as manufactured. (See Section-1 of this manual for battery
specifications).
DO NOT REPLACE ITEMS CRITICAL TO STABILITY, SUCH AS
BATTERIES, WITH ITEMS OF DIFFERENT WEIGHT OR SPECIFI-
CATION. DO NOT MODIFY UNIT IN ANY WAY TO AFFECT STABIL-
ITY.
Battery Condition Testing
NOTE: Batteries in storage should be kept at 12.5V or
higher.
Before testing for battery condition, the open circuit volt-
age should be taken from each battery. If the voltage of
the batteries differs by 0.3 volts or more, the lower voltage
battery should be replaced.
Battery Testing Can Be Performed In Two Ways:
1. The batteries can be tested using a battery tester
capable of testing 12V 100Ah AGM VRLA (Valve
Regulated Lead Acid) batteries, using the instruc-
tions of the battery tester manufacturer.
2. If an appropriate battery tester is unavailable, the
batteries can be tested by fully charging them with
the charger that is installed on the machine. Then
check the battery voltage of each battery - 4 hours -
after charging is complete. Batteries less than 12.72
volts should be replaced.
NOTE: If a faulty charger is suspected, the batteries can be
charged using a charger that supplies 2.45 volts/cell.
Charging should be terminated when the charge cur-
rent drops below 1 amp.
Battery Disconnect (Option)
If equipped, the optional battery disconnect loop is
located on the left side of the mast assembly, just above
the rear cover assembly. Battery electrical power to the
machine is disconnected when the upper half of the con-
nector is separated from the fixed lower half connector.
Use the wire handle provided on the front of the upper half
connector to disconnect it from the lower half. A lanyard
keeps the upper half attached to the machine when dis-
connected.
Battery Disconnect (Option)
1. Upper Half of Disconnect
2. Lower Half of Disconnect 3. Upper Half Pull Handle
1
2
3