Frequently Asked Questions
Warranty
Please refer to the Warranty Information Page. To get the phone number for the Authorized Warranty Dealer or All Battery Center Store nearest you, visit the Location Finder. For additional help, contact Customer Support.
Battery Maintenance
Check out our "How to Maintain Your Sitting Car Battery" blog post to learn how you can better preserve the life of your car battery.
You can quickly learn to change out a car battery in just a few simple steps, or you can get one of our Interstate pros to do it for you.
- Remove the negative (-) terminal first
- Remove the positive (+) terminal
- Check for and remove any battery holddowns and hardware
- Remove the old battery and set it aside
- Set the new battery in place
- Reinstall any holddown brackets or hardware
- Connect the positive (+) terminal first
- Connect the negative (-) terminal
Then you can take the old battery to your nearest Interstate pro so they can recycle appropriately for you. Or you can always reach out to that pro to have us replace that battery for you.
Find a pro >
You can also view our “How to Replace a Car Battery” page for a video demo.
A standard charger takes around 2-4 hours to boost a battery enough to start the engine and 10-24 hours to charge a car battery completely.
Need a car battery charger? Find the Interstate All Battery Center nearest you.
Eventually, we are all faced with a dead battery, but you have to decide whether to charge it yourself or have it done for you.
- Before connecting the charger, make sure your ignition and charger are off
- Connect the red/positive (+) clamp to the positive terminal
- Connect the black/negative (-) clamp to the negative terminal
- Adjust the volts, amps and timer (consult your car manual and charger directions for specifics)
- Turn on the charger
- Turn off the charger once you've got a charge
- Disconnect the negative clamp, followed by the positive clamp
And you are done!
You can also check out our "How to Charge a Car Battery" page for a complete video on this process.
If you don't have a car battery charger or feel you need help, reach out to an Interstate pro today.
Under normal conditions, the alternator is more than adequate to keep the battery fully charged. If the battery becomes deeply discharged, the alternator may not be able to fully charge the battery. The three main factors affecting charge is the amperage, voltage and charge time.
- The amperage or current output of an alternator is more than adequate to power the vehicle and charge the battery as long as the vehicle is driving down the road. At idle, the current is lower and may be less than adequate.
- The charging voltage required to fully charge a deeply discharged battery is higher than the alternator can produce. Since the alternator keeps the voltage on the low side to protect the electronics in the vehicle, it will dramatically increase the time needed to get the battery fully charged.
- Charge time. Under normal conditions, driving for 15 to 20 minutes is an adequate charge. If the battery becomes deeply discharged, it will take many hours of driving to charge it. If the vehicle had to be jump-started, the battery may not ever get up to a full state of charge unless a charger is used.
A charged car battery should measure 12.6 volts or higher. This number will increase to somewhere between 13.7 to 14.7 volts with the engine running. If a car battery drops to 11.9 volts or below, the battery is considered dead.
Have doubts about your car battery? Find a pro now for a free battery test.
A jump-start with jumper cables and another vehicle is typically the most common solution when a car battery dies.
How to jump a car battery
- Connect the red/positive (+) clamp to the positive terminal of the bad battery
- Connect the red/positive (+) clamp to the positive terminal of the good battery
- Connect the black/negative (-) clamp to the negative terminal of the good battery
- Connect the opposing end of the black/negative (-) clamp to a piece of metal on the body of the car
- Turn on the car with the good battery and give it a rev
- Turn on the car with the bad battery and let it charge
- Remove the clamps in reverse order without letting them touch.
You can also check out our "How to Jump-Start a Car" video page to see a hands-on demonstration.
To properly test your car battery, you'll need a multimeter. You can find one at any auto part store or online.
- Turn on the headlights and leave them on for about two minutes
- Set the multimeter to 0 to 20 volts
- Turn off the headlights
- Locate the battery and connect the multimeter to the positive and negative terminals
- Check the multimeter screen It would be best to have a resting voltage of around 12.5 volts.
- Now, start the car
- Take a look at the meter
You want to have a voltage higher than 13 volts. If the voltage is lower than 13 volts, you could have a bad alternator or battery.
If your battery does not reach 13 volts, you can always try and clean the connectors or give the battery a charge.
You can also check out our "How to Test a Car Battery" page to see a battery test in action.
If you don't have a multimeter, you can always take your vehicle to one of our Interstate Batteries pros. We're always here to help you determine your battery's health.
Car batteries typically last three to five years, but it all depends on the climate and how you drive. If your car battery begins to die, you can often look for warning signs to keep from getting stranded like:
- slow engine crank
- battery warning light
- dimming headlights or interior lights
Suppose you are experiencing any of these symptoms or don't know precisely when to replace a car battery. In that case, you should consider scheduling a complimentary battery test with one of our pros today.
Some common causes for car battery death include:
- Loose or corroded battery connections
- Persistent electrical drains
- Charging problems
- Constantly demanding more power than the alternator can handle
- Extreme weather conditions
If you are still unsure how to tell if your car battery is bad or know if your car battery is dead, you should reach out to one of our Interstate Batteries pros for a free battery test today.
Corrosion can hurt your battery's performance. It can also affect your car's electrical system as a whole. So you'll want to know how to clean car battery corrosion correctly.
- First, put on safety gloves and glasses.
- Detach your battery's negative cable. Then disconnect the red, positive cable.
- Get an old toothbrush, some baking soda and water.
- Create a cleaning solution of one part baking soda to five parts water.
- Then, scrub the terminals with the toothbrush and baking soda mixture.
- Rinse with water.
- Finally, dry everything off before reattaching cables.
Attach the positive cable first and then the negative cable.
If your battery still looks questionable, be sure and have it checked by an Interstate pro as soon as possible.
Keeping your battery clean is a great way to extend its life. Keep the terminals and the battery case clean. Visually inspect the terminals and cables for signs of corrosion at least once a year, especially in hot temperatures. Keep the top of the battery clean of heavy dirt and oil to reduce the risk of electrical transients between the positive and negative posts, which will result in a quicker discharge.
Battery cleaners are available. Use them to clean the terminals, cables and the battery case. You can also use a mixture of baking soda and water. Ensure that the caps are left on the battery during cleaning so that nothing gets into the battery. Once the acid is neutralized, rinse the battery with water. After cleaning the terminals and cables with a wire brush, reinstall the battery cables and use a terminal protector spray to protect the terminals from future corrosion.
Battery Safety
Yes. A battery that swells and becomes hot to the touch is also a direct result of overcharging and can be very dangerous and even explode. Always use the correct charger when charging a car battery, and have it checked periodically by a specialist if charging must be done frequently. Pay attention to labels that indicate exactly how the battery should be charged; this helps eliminate overcharging and possible harm and injury.
There may be little or no warning, however, if any of the following happens, your battery should be tested immediately:
- Motor has difficulty cranking over
- Battery indicator light on the instrument panel stays lit for extended periods after starting
- Headlights dim when the engine is idling, or
- Clock starts to lose time after the vehicle sits unused for several days
All of the symptoms described above can also be attributed to a discharged battery or charging system problems.
Note: To maximize the vehicle’s battery/charging system service life and performance, Interstate Batteries recommends having your vehicle battery tested at least semiannually or every time the oil is changed.
Clean the battery case with baking soda and water and scrub the terminals with a wire brush. Check the water level and add water if needed. Test your battery with a hydrometer and/or a voltmeter to ensure the battery is fully charged. If needed, charge your battery. Check the water level and state of charge every 45-60 days. If needed, add distilled water and charge.
NOTES: Batteries stored in a discharged state are susceptible to freezing in cold weather and sulfation. A fully charged battery will not freeze unless the temperature reaches approximately 75° F (24° C) below zero. But if discharged, it can freeze at 15° F (-9° C).
Store your battery in a dry, cool, well-ventilated area and out of the reach of children and pets.
Services
The cost of a car battery depends on the make and model of your vehicle and the type of battery your car requires.
Not sure where to buy a new car battery? Check out our pro locator now, and let us help you find the correct car battery for your vehicle.
Our All Battery Centers carry our full line of Interstate SLI (Starting Lighting Ignition) batteries for your automotive, marine and golf car needs. You can use the Battery Finder on this site to find the right battery for your make and model.
For all other types of batteries and products, you can contact your closest All Battery Center location by email or phone to get expert advice regarding a product or specific battery for your device. They can ensure you not only get the right battery for your device, but also verify it is in stock and have it ready for pick up. You can also check our Part Lookup and Cross-Reference Database for more information before contacting or visiting your local store.