Generator Battery
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Be Prepared
Don't let power outages catch you off guard. Our generator batteries are built to keep your home or business running smoothly during storms and emergencies.
Choose from rugged lead-acid, long-lasting AGM, or high-performance lithium batteries to ensure you're always ready when the lights go out.
Compatibility
Generators often use a range of compatible batteries. If your model isn't listed in the product finder below, check your manual or current battery for specs and size.
You can also visit your local store or call 1-800-677-8278 for expert assistance.
Generator Batteries — Be Prepared for Power Outages
Power outages happen without warning — storms, grid failures, or emergencies can leave homes and businesses in the dark. A reliable generator battery is essential to ensure your backup power system starts when you need it most. That's where Batteries Plus comes in.
At Batteries Plus, we offer a broad range of high-quality generator batteries designed to fit many popular generator brands and models, including Generac, Briggs & Stratton, Honda, Champion, Kohler, Westinghouse, and Cummins generators. From flooded lead-acid to maintenance-free AGM options, we make it easy to find the right battery for dependable performance when the power goes out.
Why Choose Batteries Plus for Your Generator Battery?
1. Expert Help Choosing the Right Battery
Not all generator batteries are the same — different generators require specific voltages, sizes, and cold cranking amps (CCA). If you're unsure what battery your unit needs, our trained team can help you determine the correct fit based on your generator model or even by inspecting your existing battery.
2. Quality Battery Types You Can Trust
- Flooded Lead-Acid Batteries: Cost-effective and reliable for many standby generators.
- AGM (Absorbent Glass Mat): Maintenance-free, vibration-resistant, and built for long life even under tough conditions.
3. Local Store Support + Online Convenience
With 700+ locations nationwide and a robust online catalog, you can shop wherever is most convenient for you. Plus, our local stores offer expert support and installation help if needed.
Generator Batteries for Commercial Use
When power outages impact a business, downtime costs money. Batteries Plus supports commercial customers who rely on generators to keep operations running during emergencies, maintenance, and unexpected outages.
We help businesses, contractors, and facilities teams find the right generator battery fast, with expert guidance on voltage, group size, and CCA requirements. Whether you're maintaining one generator or multiple locations, our nationwide store network makes replacement easy and consistent.
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Generator Battery FAQs
Your generator owner's manual will list the required battery specifications, including group size, voltage, and minimum cold cranking amps (CCA). If you don't have the manual, Batteries Plus can help identify the correct battery from your existing unit.
Most generator batteries last 2–5 years, depending on usage, storage conditions, and maintenance. Testing your battery annually and replacing it before failures occur helps ensure your backup power is ready when you need it.
Not always. Some generators need batteries with high starting power (CCA) rather than deep-cycle capacity. Your specific generator requirements should always guide battery choice. Batteries Plus experts can help you pick the right type.
Yes — many Batteries Plus locations can test or install your generator battery and help with maintenance tips to extend its life.
Bring your generator's label or current battery to a store, and our team can look up the correct replacement for you.
