2005-2007 Polaris Ranger 500 service manual, Page 319Get this manual
ELECTRICAL Battery Removal
12Disconnect holder strap and remove coversDisconnect battery negative (-) (black) cable first, followed by the positive (+) (red) cable
OCVOpen Circuit Voltage Test
Battery voltage should be checked with digital multitesterReadings of 12.6 volts or less require further battery testing and chargingSee charts and Load Test on belowNOTE: Lead-acid batteries should be kept at or near full charge as possibleElectrolyte level should be kept between the low and full marksIf 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 batteryOPEN CIRCUIT VOLTAGE State of Charge 100 Charged 75 Charged 50 Charged Conventional Lead-Acid 12.60 12.40 12.10 11.90 less than 11.80 YuMicronTM Type 12.70 12.50 12.20 12.0 less than 11.9 V
CAUTION