caution - Toro
caution - Toro
caution - Toro
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Battery Charging<br />
To minimize possible damage to the battery and allow<br />
the battery to be fully charged, the slow charging method<br />
is presented here. This charging method can be accomplished<br />
with a constant current battery charger<br />
which is readily available locally.<br />
CAUTION<br />
Follow the manufacturer’s instructions when using<br />
a battery charger.<br />
NOTE: Using specific gravity of the battery cells is the<br />
most accurate method of determining battery condition.<br />
1. Determine the battery charge level from either its<br />
specific gravity or open circuit voltage.<br />
Battery Charge<br />
Level<br />
Specific<br />
Gravity<br />
Open Circuit<br />
Voltage<br />
100% 1.265 12.68<br />
75% 1.225 12.45<br />
50% 1.190 12.24<br />
25% 1.155 12.06<br />
0% 1.120 11.89<br />
2. Determine the charging time and rate using the battery<br />
charger manufacturer’s instructions or the following<br />
table.<br />
CAUTION<br />
Do not charge a frozen battery because it can explode<br />
and cause injury. Let the battery warm to<br />
60 o F (15.5 o C) before connecting to a charger.<br />
Charge the battery in a well -ventilated place to<br />
dissipate gases produced from charging. These<br />
gases are explosive; keep open flame and electrical<br />
spark away from the battery. Do not smoke.<br />
Nausea may result if the gases are inhaled. Unplug<br />
the charger from the electrical outlet before<br />
connecting or disconnecting the charger leads<br />
from the battery posts.<br />
3. Following the battery charger manufacturer’s<br />
instructions, connect the charger cables to the battery.<br />
Make sure a good connection is made.<br />
4. Charge the battery following the battery charger<br />
manufacturer’s instructions.<br />
5. Occasionally check the temperature of the battery<br />
electrolyte. If the temperature exceeds 125 o F (51.6 o C)<br />
or the electrolyte is violently gassing or spewing, the<br />
charging rate must be lowered or temporarily stopped.<br />
6. Three hours prior to the end of the charging, measure<br />
the specific gravity of a battery cell once per hour.<br />
The battery is fully charged when the cells are gassing<br />
freely at a low charging rate and there is less than a<br />
0.003 change in specific gravity for three consecutive<br />
readings.<br />
Battery<br />
Reserve<br />
Battery Charge Level<br />
(Percent of Fully Charged)<br />
Capacity<br />
(Minutes) 75% 50% 25% 0%<br />
80 or less 3.8 hrs<br />
@<br />
3amps<br />
81 to 125 5.3 hrs<br />
@<br />
4amps<br />
126 to<br />
170<br />
171 to<br />
250<br />
above<br />
250<br />
5.5 hrs<br />
@<br />
5amps<br />
5.8 hrs<br />
@<br />
6amps<br />
6hrs<br />
@<br />
10 amps<br />
7.5 hrs<br />
@<br />
3amps<br />
10.5 hrs<br />
@<br />
4amps<br />
11 hrs<br />
@<br />
5amps<br />
11.5 hrs<br />
@<br />
6amps<br />
12 hrs<br />
@<br />
10 amps<br />
11.3 hrs<br />
@<br />
3amps<br />
15.8 hrs<br />
@<br />
4amps<br />
16.5 hrs<br />
@<br />
5amps<br />
17.3 hrs<br />
@<br />
6amps<br />
18 hrs<br />
@<br />
10 amps<br />
15 hrs<br />
@<br />
3amps<br />
21 hrs<br />
@<br />
4amps<br />
22 hrs<br />
@<br />
5amps<br />
23 hrs<br />
@<br />
6amps<br />
24 hrs<br />
@<br />
10 amps<br />
Electrical System<br />
Page 5 - 40<br />
Groundsmaster 4100--D
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