Toro Greensmaster 3200 Service Manual page 222

Charging
To minimize possible damage to the battery and allow
the battery to be fully charged, the slow charging meth-
od is presented here. This charging method can be ac-
complished with a constant current battery charger
which is available in most shops.
Follow the manufacturer's
when using a battery charger.
Note: Using specific gravity of the battery cells is the
most accurate method of determining battery condition.
1. Determine the battery charge level from either its
open specific gravity or circuit voltage.
Battery Charge Specific
Level Gravity
100%
75%
50%
25%
0%
2. Determine the charging time and rate using the
manufacturer's battery charger instructions or the
following table.
Battery Battery Charge Level
Reserve (Percent of Fully Charged)
Capacity Capacity
75%
(Minutes)
80 or less 3.8 hrs
@
3 amps
81 to 125 5.3 hrs
@
4 amps
126 to 5.5 hrs
170 @
5 amps
171 to 5.8 hrs
250 @
6 amps
above 6 hrs
250 @
10 amps 10 amps 10 amps 10 amps
Electrical System
CAUTION
instructions
Open Circuit
Voltage
1.265 12.68
1.225 12.45
1.190 12.24
1.155 12.06
1.120 11.89
50% 25%
7.5 hrs 11.3 hrs 15 hrs
@ @
3 amps 3 amps 3 amps
10.5 hrs 15.8 hrs 21 hrs
@ @
4 amps 4 amps 4 amps
11 hrs 16.5 hrs 22 hrs
@ @
5 amps 5 amps 5 amps
11.5 hrs 17.3 hrs 23 hrs
@ @
6 amps 6 amps 6 amps
12 hrs 18 hrs 24 hrs
@ @
Do not charge a frozen battery because it
can explode and cause injury. Let the bat-
tery warm to 60 F (15.5 C) before con-
necting to a charger.
Charge the battery in a well–ventilated
place to dissipate gases produced from
charging. These gases are explosive;
keep open flame and electrical spark
away from the battery. Do not smoke.
Nausea may result if the gases are in-
haled. Unplug the charger from the elec-
trical outlet before connecting or discon-
necting the charger leads from the battery
posts.
3. Following the manufacturer's instructions, con-
nect the charger cables to the battery. Make sure a good
connection is made.
4. Charge the battery following the manufacturer's
instructions.
5. Occasionally check the temperature of the battery
electrolyte. If the temperature exceeds 125 F (51.6 C)
or the electrolyte is violently gassing or spewing, the
charging rate must be lowered or temporarily stopped.
6. Three hours prior to the end of the charging, mea-
sure the specific gravity of a battery cell once per hour.
The battery is fully charged when the cells are gassing
freely at a low charging rate and there is less than a
0.003 change in specific gravity for three consecutive
readings.
0%
@
@
@
@
@
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CAUTION
Greensmaster 3200/3200–D