battery capacity INFINITI QX4 2001 Factory Service Manual

MEL043F
IRemove the cell plug using a suitable tool.
IAdd distilled water up to the MAX level.
SEL709E
SulphationNBSC0003S0201A battery will be completely discharged if it is left unattended
for a long time and the specific gravity will become less than
1.100. This may result in sulphation on the cell plates.
To determine if a battery has been ªsulphatedº, note its volt-
age and current when charging it. As shown in the figure, less
current and higher voltage are observed in the initial stage of
charging sulphated batteries.
A sulphated battery may sometimes be brought back into ser-
vice by means of a long, slow charge, 12 hours or more, fol-
lowed by a battery capacity test.
MEL042FA
SPECIFIC GRAVITY CHECKNBSC0003S031. Read hydrometer and thermometer indications at eye level.
2. Use the chart below to correct your hydrometer reading
according to electrolyte temperature.
Hydrometer Temperature CorrectionNBSC0003S0301
Battery electrolyte temperature ÉC (ÉF) Add to specific gravity reading
71 (160) 0.032
66 (150) 0.028
60 (140) 0.024
54 (130) 0.020
49 (120) 0.016
43 (110) 0.012
38 (100) 0.008
32 (90) 0.004
27 (80) 0
21 (70) þ0.004
16 (60) þ0.008
10 (50) þ0.012
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BATTERY
How to Handle Battery (Cont'd)
SC-5

BatteryNBSC0014
Applied area USA Canada
Type80D26R
Capacity V-AH12-65
Cold cranking current A
(For reference value)582
StarterNBSC0015
TypeM0T50371
MITSUBISHI make
Reduction gear type
System voltage12V
No-loadTerminal voltage 11.0V
Current Less than 90A
Revolution More than 2,700 rpm
Minimum diameter of commutator28.8 mm (1.134 in)
Minimum length of brush7.0 mm (0.276 in)
Brush spring tension18.3 - 24.8 N (1.87 - 2.53 kg, 4.11 - 5.58 lb)
Movement ªº in height of pinion assembly 0.5 - 2.0 mm (0.020 - 0.079 in)
AlternatorNBSC0016
TypeLR1110-712
HITACHI make
Nominal rating12V-110A
Ground polarityNegative
Minimum revolution under no-load (When 13.5 volts is applied) Less than 1,000 rpm
Hot output current (When 13.5 volts is applied)More than 35A/1,300 rpm
More than 85A/2,500 rpm
More than 110A/5,000 rpm
Regulated output voltage14.1 - 14.7V
Minimum length of brushMore than 6.0 mm (0.236 in)
Brush spring pressure 1.0 - 3.43 N (102 - 350 g, 3.60 - 12.34 oz)
Slip ring minimum outer diameter More than 26.0 mm (1.024 in)
Rotor (Field coil) resistance2.31W
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SERVICE DATA AND SPECIFICATIONS (SDS)
Battery
SC-29