Toro ProPass 200 Service Manual page 129

Battery 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 service shops.
CAUTION
Follow the battery charger manufacturer's
instructions 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% 1.265
75% 1.225
50% 1.190
25% 1.155
0% 1.120
2. Determine the charging time and rate using the bat-
tery charger manufacturer's instructions or the fol-
lowing table.
Battery Battery Charge Level
Reserve (Percent of Fully Charged)
Capacity
75% 50%
(Minutes)
80 or 3.8 hrs 7.5 hrs
less @
3 amps 3 amps
81 to 125 5.3 hrs 10.5 hrs
@
4 amps 4 amps
126 to 5.5 hrs 11 hrs
170 @
5 amps 5 amps
171 to 5.8 hrs 11.5 hrs
250 @
6 amps 6 amps
above 6 hrs 12 hrs
250 @
10 amps 10 amps
ProPass 200
Open Circuit
Voltage
12.68
12.45
12.24
12.06
11.89
25% 0%
11.3 hrs 15 hrs
@ @ @
3 amps 3 amps
15.8 hrs 21 hrs
@ @ @
4 amps 4 amps
16.5 hrs 22 hrs
@ @ @
5 amps 5 amps
17.3 hrs 23 hrs
@ @ @
6 amps 6 amps
18 hrs 24 hrs
@ @ @
10 amps 10 amps
Page 6 - - 25
CAUTION
Do not charge a frozen battery because it can ex-
plode and cause injury. Let the battery warm to
o o
60 F (16 C) before connecting to a charger.
Charge battery in a well- -ventilated place to dissi-
pate gases produced from charging. These
gases are explosive.
Keep open flame and electrical spark away from
the battery. Do not smoke. Unplug the charger
from the electrical outlet before connecting or
disconnecting the charger leads from the battery
posts.
Nausea may result if the gases are inhaled.
3. Follow the battery charger manufacturer's in-
structions. Connect charger cables to the battery.
Make sure a good connection is made.
4. Charge the battery following the battery charger
manufacturer's instructions.
5. Occasionally check the temperature of the battery
electrolyte. If the temperature exceeds 125
the electrolyte is violently gassing or spewing, the
charging rate must be lowered or temporarily stopped.
6. Three (3) 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 (3) consecu-
tive readings.
Battery Storage
If the vehicle will be stored for more than thirty (30) days,
remove the battery and charge it fully. Either store it on
the shelf or on the vehicle. Leave the cables discon-
nected if it is stored on the vehicle. Store the battery in
a cool atmosphere to avoid quick deterioration of the
charge in the battery. To prevent the battery from freez-
ing, make sure it is fully charged.
o o
F (52 C) or
Hydraulic Power Pack