Toyota 8FBE18T, Operator'S Manual

Page: 27 / 53

En
27
BATTERY
Cautions concerning battery use
1. Do not overdischarge.
The battery charge indicator on the display blinks
to inform the timing for charging when the charge
drops below 20%. Charge the battery as soon as
possible.
2. Avoid open flames.
The battery contains explosive gas. Keep away
from open flames.
3. Do not let the electrolyte run out.
Only the water content of the fluid (diluted sulfu-
ric acid) decreases when the battery is charged.
Before charging, add distilled water (purified
water) up to the specified level and reinspect the
fluid level one hour after charging is complete.
Note:
When using a local battery, contact your Toyota dealer
for information.
4. Keep the battery clean.
Especially, keep the battery top clean and dry.
Keep the vent caps tightly closed.
Specific gravity inspection
Perform specific gravity inspection following the man-
ufacturer's instruction.
(Reference)
Perform specific gravity inspection at least once a
week, and check that proper charging is done and that
there is no extreme difference in specific gravity in the
battery cells.
Specific gravity after
charging
..................................... 1.280 (20°C)
Specific gravity after
discharging
................................ 1.150 (20°C)
When the specific gravity is below 1.150 (at 20°C), be
sure to charge until the specific gravity is up to 1.280
(at 20°C).
Check the fluid temperature with a thermometer and
convert the measured specific gravity to the specific
gravity at 20°C.
Caution Caution Caution
Records concerning the battery should be kept
properly as references to understand the battery
condition.
Relationship between fluid specific grav-
ity and temperature
Specific gravity conversion equation
S20 = St. + 0.0007 (t-20)
S20: Specific gravity at 20°C conversion
St: Measured specific gravity at t°C
t:Electrolyte temperature (°C) at the time of measure-
ment
Electrolyte level inspection
Warning
When checking the electrolyte, make sure the vehi-
cle is on a flat surface and carrying no load before
removing the battery.
(1) Hydrometer
(2) Outer tube
(3) Nozzle
(En-26)