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Think Interstate Batteries® for a Reliable Start Every Time
Wherever life takes you, Interstate Batteries® is ready to power the journey. For over 70 years, we’ve delivered dependable batteries for cars, boats, RVs, golf carts and more. With proven performance, friendly service and a strong commitment to recycling, getting the power you need has never been easier.
Why Choose Interstate®?
It’s simple. Our reputation, reliability and availability make us a trusted choice. Plus, people love the quality and long life of our batteries. Enjoy:
- Consistent power for all your adventures
- Options for modern vehicles like AGM
- Professional installation and responsive customer service at an Autotodo location near you
Power your journey with confidence—choose Interstate Batteries.
Best Battery Tips
Why, When and Where to Test a Battery
Regular battery tests are quick, easy and often free, making them your best way to catch issues early. Test in spring and fall when temperature swings add stress. A pro can check your battery’s condition, so you are never caught off guard.
Signs Your Battery Is Failing
- Slow engine crank
- Battery or check engine light*
- Low fluid
- Swollen case
- Corroded terminals
- Dim lights
*May also indicate another mechanical issue.
Does Driving Charge a Battery?
Yes, but mostly at long, highway-speed drives. The alternator powers the car first and charges the battery second, so it won’t fully recharge if:
- A light was left on
- The car sat unused for a month
- You only drive short or stop-and-go trips
The best way to charge your battery is with a charger.
Preventing Battery Drain in an Unused Car
A sitting car can drain the battery in about two months, faster if the battery is older. To help it last:
- Disconnect the security system
- Use a trickle charger
- Take a 30-minute drive every few days
Overheated Batteries
A battery that gets too hot can leak, swell or even explode. Warning signs include:
- Rotten-egg smell
- Swelling
- Steam
If you notice these, turn off the engine and let the car cool.
Cooling a Hot Battery
- Park in shade or a garage
- Open the hood to release heat
