BOMBARDIER SEA-DOO GS 5626 1998, Shop Manual

Page: 233 / 426

Section 08 ELECTRICAL SYSTEM
Subsection 03 (CHARGING SYSTEM)
08-03-5
Unload Test
Check charge condition using either a hydrometer
or multimeter.
With a multimeter, voltage readings appear in-
stantly to show the state of charge. Always re-
spect polarity. A fully charge battery will have a
reading of 12.6 Vdc.
A hydrometer measures the charge of a battery in
terms of specific gravity of the electrolyte. A fully
charge battery will have a specific gravity be-
tween 1.265 to 1.280.
Most hydrometers give a true reading at 21
°
C
(70
°
F).
1. Specific gravity 1.265
In order to obtain correct readings, adjust the ini-
tial reading by
adding
.004 points to the hydrom-
eter readings for each 5.5
°
C (10
°
F) above 21
°
C
(70
°
F) and by subtracting .004 point for every
5.5
°
C (10
°
F)
below
21
°
C (70
°
F).
This chart will be useful to find the correct read-
ing.
Load Test
This is the best test of battery condition under a
starting load. Use a load testing device that has an
adjustable load.
Apply a load of 3 times the ampere-hour rating of
the battery. At 14 seconds into the test, check
battery voltage; if battery is in good condition, it
will have at least 10.5 Vdc.
Battery Storage
Disconnect and remove battery from watercraft
as explained in
Removal
.
Check electrolyte level in each cell, add distilled
water up to upper level line.
The battery must always be stored in fully charged
condition. If required, charge until specific gravity
of 1.265 is obtained.
A17E0JA
1
ELECTROLYTE
TEMPERATURE
OPERATION TO
PERFORM
°C
°
F
38
32
27
100
90
80
.012
.008
.004 Add
to the
reading
21 70 correct reading
16
10
4
-1
60
50
40
30 .004
.008
.012
.016
Subtract
from the
reading
EXAMPLE NO. 1
Temperature above 21
°
C (70
°
F):
Hydrometer reading: 1.250
Electrolyte temperature: -1
°
C (30
°
F)
Subtract .016 Sp. Gr.
Corrected Sp. Gr. is 1.234
EXAMPLE NO. 2
Temperature above 21
°
C (70
°
F):
Hydrometer reading: 1.235
Electrolyte temperature: 38
°
C (100
°
F)
Add .012 Sp. Gr.
Corrected Sp. Gr. is 1.247
-
CAUTION
Do not overfill.
-
CAUTION
Battery electrolyte temperature must not ex-
ceed 50
°
C (122
°
F). The casing should not
feel hot.