Conventional Battery Specific Gravity Test; Battery Load Test; Off Season Storage - Polaris 2014 Sportsman 570 EF Service Manual

Table of Contents

Advertisement

Conventional Battery Specific Gravity Test

A tool such as a Battery Hydrometer (PN 2870836) can
be used to measure electrolyte strength or specific
gravity. As the battery goes through the charge/
discharge cycle, the electrolyte goes from a heavy (more
acidic) state at full charge to a light (more water) state
when discharged. The hydrometer can measure state of
charge and differences between cells in a multi-cell
battery. Readings of 1.270 or greater should be observed
in a fully charged battery. Differences of more than .025
between the lowest and highest cell readings indicate a
need to replace the battery.
STATE OF
CONVENTIONAL
CHARGE
LEAD - ACID
100%
12.60V
Charged
12.40V
75% Charged
12.10V
50% Charged
11.90V
25% Charged
less than 11.80V
0% Charged
STATE OF
CONVENTIONAL
CHARGE*
LEAD - ACID
100%
1.265
Charged
1.210
75% Charged
1.160
50% Charged
1.120
25% Charged
less than 1.100
0% Charged
* Measurement at 80° F
NOTE: Subtract .01 from the specific gravity reading
at 40° F
9924871 R03 - 2014 Polaris Sportsman® 570 EFI Service Manual

Battery Load Test

To prevent shock or component damage, remove spark
plug high tension leads and connect securely to engine
NOTE: This test can only be performed on machines
with electric starters. This test cannot be performed
with an engine or starting system that is not working
properly.
A battery may indicate a full charge condition in the OCV
test and the specific gravity test, but still may not have
the storage capacity necessary to properly function in the
electrical system. For this reason, a battery capacity or
load test should be conducted whenever poor battery
performance is encountered. To perform this test, hook a
multitester to the battery in the same manner as was
done in the OCV test. The reading should be 12.6 volts
or greater. Engage the starter and observe the battery
voltage while cranking the engine. Continue the test for
15 seconds. During cranking the observed voltage
should not drop below 9.5 volts. If the beginning voltage
is 12.6 volts or higher and the cranking voltage drops
below 9.5 volts during the test, replace the battery.
LOW
MAINTE-

Off Season Storage

NANCE
12.70V
To prevent battery damage during extended periods of
non-use, the following basic battery maintenance items
12.50V
must be performed:
12.20V
• Remove the battery from the machine and wash
12.0V
the case and battery tray with a mild solution of
Less than
baking soda and water. Rinse with lots of fresh
11.90V
water after cleaning. NOTE: Do not get any of the
baking soda into the battery or the acid will be
neutralized.
LOW
• Using a wire brush or knife, remove any corrosion
MAINTENANCE
from the cables and terminals.
1.275
• Make sure that the electrolyte is at the proper
1.225
level. Add distilled water if necessary.
1.175
• Charge at a rate no greater than 1/10 of the
1.135
battery's amp/hr capacity until the electrolyte's
specific gravity reaches 1.270 or greater.
Less than 1.115
• Store the battery either in the machine with the
cables disconnected, or store in a cool place.
NOTE: Recharge to full capacity every 30 to 60
days during a non-use period. If the battery is
stored during the winter months, electrolyte
will freeze at higher temperatures as the
battery discharges. The chart below indicates
freezing points by specific gravity.
© Copyright 2013 Polaris Sales Inc.
ELECTRICAL
CAUTION
ground before proceeding.
10
10.43

Advertisement

Table of Contents
loading

Table of Contents