2009 Polaris Scrambler 500 4x4 2x4 factory service manual, Page 241Get this manual
ELECTRICAL
Battery Location
SEALED LOW MAINTENANCE BATTERYOCVOPEN CIRCUIT VOLTAGE TEST
Battery voltage should be checked with digital multitesterReadings of 12.8 volts or less require further battery testing and chargingSee charts and Load TestNOTE:Lead-acid batteries should be kept at or near full charge as possibleIf the battery is stored or used in partially charged condition, or with low electrolyte levels, hard crystal sulfation will form on the plates, reducing the efficiency and service life of the batteryNOTE:Use voltmeter or multimeter to test batter voltageOPEN CIRCUIT VOLTAGE State of charge 100 75 Charged 50 Charged 25 Charged Charged Maintenance Free 13.0V 12.80V 12.50V 12.20V less than 12.0V Conventional LeadAcid 12.70V 12.50V 12.20V 12.0V less than 11.9V