- Test your battery on a regular basis, including when you have your car serviced, before long trips or after it's been recharged.
- Maintain all areas/parts of your vehicle as directed in your owner's manual and/or by your mechanic. This will reduce the chance of other engine components draining power from your battery. It's not always the battery's fault, but often a symptom of other problems.
Deep Cycle/Marine Batteries
Storing your battery for extended periods
- Charge the battery until it is completely charged
- Store it in a cold place but not where it will consistently go below 32°F
- Check the battery every two months and recharge if necessary*
- Remove all electrical connections from the battery including series/parallel connectors
*A fully charged specific gravity of 1.265 corrected to 80°F is assumed.
Maintenance tips for extended battery life
- Regularly clean the battery container and terminals
- Make sure vent caps are tight to prevent water or baking soda from entering cells
- Apply baking soda to any corrosion and rinse cover with water
- Check your battery's electrolyte level before charging, it should be at the bottom of the vent splash band:
Electrolyte level low? Add distilled water to bring level to the bottom of the vent walls.
Distilled water not available? Use a good drinking water. It's better than adding nothing; otherwise the battery plate will dry out and the battery could lose its capacity.
Recharging guidelines for maximum life
- Recharge immediately after each use
- Use battery charger matched to the battery's size
- Do not overcharge; an automatic charger that turns off or on with a timer is your best bet
- Always slow charge a deep cycle battery; never fast charge or boost charge it
- A 10-12 hour charge with the appropriate charger at the correct amp rate will usually bring your battery to a full state of charge from a deep discharge