2009 Polaris Sportsman 850 XP EFI EPS Service Manual, Page 315Get this manual
ELECTRICAL BATTERY SERVICE
Battery Specifications Battery PN 4011224
Type Voltage Nominal Capacity 10 HR Rate CCA Nominal Open Circuit Voltage Recommended Charging Rate PolarisDeka ETX30L SealedMaintenance Free 12 Vdc 26 365 12.8 Vdc or more14.314.6 Vdc 312Check battery voltage with voltohm meterA fully charged battery should be 12.8 or higherIf the voltage is below 12.6 V, the battery will need to be recharged (see "Charging Procedure")
NEVER attempt to open the batteryIf the seal is broken, the battery will be ruined and will fail within few weeksTo service Maintenance Free battery: 12Remove battery from the vehicle (see Chapter 2)Test battery with voltage meter or load tester to determine battery conditionThis will determine the length of time required to charge the battery to full capacityRefer to OCV table (see "OCVOpen Circuit Voltage Test")Charge the battery as recommended (see "Charging Procedure")