Toro Pro Force 44552TE Service Manual page 97

Charging the Battery (continued)
Battery Charge Rate (continued)
Pro Force® Debris Blower
18237SL Rev A
171 to 250 5.8 hrs @ 6 A
above 250
6 hrs @ 10 A
To minimize damage to the battery and allow the battery to charge fully, use the
following slow charging procedure. You can accomplish this charging procedure
with a constant current battery charger that is available locally.
Follow the manufacturer's instructions when using a battery charger.
Note: Using the specific gravity of the battery cells is the most accurate
procedure of determining the battery condition.
1. Use Battery Charge Level (page 5–42)
from the specific gravity of the battery cells or open circuit voltage.
2. Use the manufacturer's battery charger instructions or
(page 5–42) to determine the charging time and rate.
Charging a frozen battery can cause explosion and can cause
personal injury. Let the battery warm to 15°C (60°F) before
connecting to a charger.
• Charge the battery in a well-ventilated place to dissipate the
gases produced from the charging.
• These gases are explosive; keep open flame and electrical
spark away from the battery. Do not smoke.
• Inhaling the battery gases can cause nausea.
• Unplug the charger from the electrical outlet before connecting
or disconnecting the charger leads from the battery terminals.
3. Follow the battery charger manufacturer's instructions, connect the charger
cables to the battery terminals. Ensure that you make a good connection
4. Charge the battery following the manufacturer's instructions.
5. Occasionally check the temperature of the battery-electrolyte. If the
temperature is more than 52°C (125°F) or the electrolyte is violently gassing
or spewing, lower the charge rate or temporarily stop charging the battery.
6. Beginning three hours before the end of the scheduled charge, measure the
specific gravity of a battery cell once per hour.
Note: 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 3 consecutive readings.
11.5 hrs @ 6 A
12 hrs @ 10 A
IMPORTANT
to determine the battery charge level
CAUTION
Page 5–43
17.3 hrs @ 6 A 23 hrs @ 6 A
18 hrs @ 10 A 24 hrs @ 10 A
Battery Charge Rate
Electrical System: Service and Repairs