Content Source: 2019 RZR 900 / S 900 Owner’s Manual (9929135 R01) > Maintenance Chapter

IMPORTANT

The Owner's Manual for this vehicle contains warnings, instructions and other information you must read and fully understand before safely riding or performing maintenance on this vehicle.Always follow the warnings and instructions in Owner's Manual.

Click the CONTENTS link above for the Table Of Contents, or download a full PDF of the Owner Manual in the Owner Support area of Polaris.com

Battery

WARNING
Improperly connecting or disconnecting battery cables can result in an explosion and cause serious injury or death. When removing the battery, always disconnect the negative (black) cable first. When reinstalling the battery, always connect the negative (black) cable last.
Your vehicle has a low-maintenance battery. Always keep battery terminals and connections free of corrosion. If cleaning is necessary, remove the corrosion with a stiff wire brush. Wash with a solution of one tablespoon baking soda and one cup water. Rinse well with tap water and dry off with clean shop towels. Coat the terminals with dielectric grease or petroleum jelly.

Battery Removal

  1. Remove the driver’s seat (RZR) or the left rear passenger seat (RZR 4). See the Seats section for details.
  2. Disconnect the black (negative) battery cable first.
  3. Disconnect the red (positive) battery cable last.
  4. Remove the battery hold-down strap.
  5. Lift the battery out of the vehicle.

Battery Installation

Using a new battery that has not been fully charged can damage the battery and result in a shorter life. It can also hinder vehicle performance. Follow the instructions in the Battery Charging section before installing the battery.
  1. Ensure that the battery is fully charged.
  2. Place the battery in the battery holder.
  3. Coat the terminals with dielectric grease or petroleum jelly.
  4. Secure the battery hold-down strap.
  5. Connect and tighten the red (positive) cable first.
  6. Connect and tighten the black (negative) cable last.
  7. Verify that cables are properly routed.
  8. Reinstall the seat.

Battery Storage

Whenever the vehicle is not used for a period of three months or more, recharge the battery about once a month to make up for normal self-discharge (see the Battery Charging section for details), or use a POLARIS Battery Tender, which can be left connected during the storage period. Battery Tender will automatically charge the battery if voltage drops below a pre-determined point. See the POLARIS products section for the part numbers.
During the storage period, park the vehicle out of the sun in a cool, dry place or remove the battery and store it in a cool, dry place.

Battery Charging

The following battery charging instructions apply only to the installation of a sealed battery. Read all instructions before proceeding with the installation of this battery.
The sealed battery is already filled with electrolyte and has been sealed and fully charged at the factory. Never pry the sealing strip off or add any other fluid to this battery.
A sealed battery must always be maintained with a full charge. Since the battery is sealed and the sealing strip cannot be removed, you must use a voltmeter or multimeter to measure DC voltage.
WARNING
An overheated battery may explode, causing severe injury or death. Always watch charging times carefully. Stop charging if the battery becomes very warm to the touch. Allow it to cool before resuming charging.
For a refresh charge, follow all instructions carefully.
  1. The battery should be disconnected from a load or charger for at least two hours before checking voltage. Check the battery voltage with a voltmeter or multimeter. A fully charged battery will register 12.8 V or higher.
  2. If the voltage is less than 12.8 volts, recharge the battery at 1.2 amps or less until battery voltage is 12.8 or greater.
  3. When using an automatic charger, refer to the charger manufacturer's instructions for recharging. When using a constant current charger, use the guidelines on the next page for recharging.
Always verify battery condition before and 1-2 hours after the end of charging.
State of Charge Voltage Action Charge Time*

100%

12.8-13.0 volts

None, check at 3 mos. from date of manufacture

None required

75%-100%

12.5-12.8 volts

May need slight charge, if no charge given, check in 3 months

3-6 hours

50%-75%

12.0-12.5 volts

Needs charge

5-11 hours

25%-50%

11.5-12.0 volts

Needs charge

At least 13 hours, verify state of charge

0%-25%

11.5 volts or less

Needs charge with desulfating charger

At least 20 hours
*Using constant current charger @ standard amps specified on top of battery

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