Ocv - Open Circuit Voltage Test; Load Test; Specific Gravity Test - Polaris 2012 RANGER RZR 570 INTL Service Manual

ELECTRICAL

OCV - Open Circuit Voltage Test

Battery volt age sho uld be
multitester. Readings of 12.6 volts or less require further
battery testing and charging. See the following chart and

"Load Test".

NOTE: Use a volt/ohm meter to test battery voltage.
Battery PN 4012622
OPEN CIRCUIT VOLTAGE
State of Charge
100%
75% Charged
50% Charged
25% Charged
0% Charged
Load Test
CAUTION
To prevent shock or component damage, remove spark
plug high tension leads and connect securely to
engine ground before proceeding.
A battery may indicate a full charge condition in the OCV
test, but still may not have th e storage capacity necessary
to pr operly function in the e lectrical s ystem. F or t his
reason, a ba ttery cap acity or lo ad test sho uld be
conducted whenever po or batter y pe rformance is
encountered.
To perform this test, use a load testing device that has an
adjustable load. Apply a load of three times the ampere-
hour rating. At 14 seconds in to the te st, che ck battery
voltage. A good 12V battery will have at least 10.5 volts.
If the reading is low, charge the battery and retest.
10.30
checked with a digital
Maintenance Free
12.7 V and up
12.5 V
12.2 V
12.0 V
11.9 V or less
9923523 - 2012 RANGER RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.

Specific Gravity Test

A tool such as a Battery Hydrometer (PN 2870836) can be
used to measure electrolyte strength or sp ecific 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 s hould b e observed in a f ully ch arged ba ttery.
Differences o f mo re th an .0 25 b etween th e lowest an d
highest ce ll r eadings indicate a n eed to r eplace the
battery.
SPECIFIC GRAVITY
State of Charge*
100% Charged
75% Charged
50% Charged
25% Charged
0% Charged
* At 80° F. NOTE: Subtract .01 from the specific
gravity reading at 40° F.
NOTE: Lead-acid batteries should be kept at or near
a full charge as possible. Electrolyte level should be
kept between the low and full marks. If the battery is
stored or us ed in a pa rtially c harged c ondition, or
with low electrolyte levels, hard crystal sulfation will
form on the plat es, re ducing t he ef ficiency a nd
service life of the battery.
Battery Hydrometer
(PN 2870836)
YuMicron™ Type
1.275
1.225
1.175
1.135
1.115 or less