Toro Greensmaster TriFlex 3320/3420 Service Manual page 232

Battery Pack Service
Clean the battery pack with clean water and a towel. Do
not use solvents or chemicals to clean the battery pack.
When testing batteries in your Greensmaster, it is impor-
tant to test all four (4) individual batteries. Proper perfor-
mance of the machine depends on all batteries being in
good condition. Testing will determine if one (or more) of
the batteries needs to be replaced.
A simple battery test can be done using a multimeter to
perform a voltage test of each of the batteries in the bat-
tery pack. Measure the battery voltage with the multime-
ter and record battery voltage. The measured voltage
can be used to determine battery state of charge. If the
voltage of any of the batteries varies by more than 10%,
it indicates a problem with the lower voltage battery.
If the battery pack system voltage drops below 50VDC
due to storage, age or malfunction, battery inspection
and/or charging may be necessary. The batteries may
be individually charged with a 12V charger rated for op-
eration with absorbed glass mat (AGM), valve regulated
lead acid batteries. The voltage of this battery type is
slightly lower than flooded lead acid batteries. Maximum
charge current should be limited to 2.4 amps.
A battery load tester can be used to test individual bat-
teries. Many locally available battery load testers do not,
however, have any adjustment on the load that is put on
the battery. Results received from using load testers
should follow the recommendations of the load tester
manufacturer.
Electrical System
Battery Pack Storage
There are no special procedures or precautions for bat-
tery storage less than six (6) months. However, storage
o
above 70 F (21
Cold temperatures are not an issue during storage and
actually will reduce the battery self--discharge rate. To
obtain maximum battery life, do not store the battery
pack in a discharged state.
If storage is anticipated for longer than six (6) months,
inspection and/or charging is recommended at six (6)
month intervals. Battery charging is recommended
whenever the battery pack voltage drops below 50VDC
or if voltage of an individual battery drops below
12.5VDC.
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o
C) will significantly reduce battery life.
Greensmaster 3320/3420