Key Features You Need in a Generator Battery

When you’re choosing a generator battery, voltage and compatibility are key considerations. Most generators require a 12-volt battery, similar to car batteries, but not all automotive batteries are suitable. The demands of your unit, like its starting requirements, determine the battery specs you need.

For the Generac home standby generators we install, most car batteries are compatible, but not all units and brands are the same. For example, many air-cooled models require a Group 26R battery, which refers to the battery's size and terminal placement.

When we install your unit, we select batteries that:

• Meet the required voltage and cold cranking amps (CCA) ratings
• Ensure compatibility with your model (Generac, Kohler, Eaton, etc.)
• Deliver long-lasting performance for backup systems
• Handle your conditions and requirements

Do Gas Generators Require a Battery?

Gas generators with electric start require a battery to power the starter motor, which cranks the engine and gets the generator running. The battery works as part of the setup to ensure the generator can start automatically or with a button press, especially in standby systems.

Diesel generators also rely on batteries for starting, but they often require different options due to the higher compression needed to ignite diesel fuel. These batteries need to deliver more power to turn over the engine effectively. Both gas and diesel units also typically include a charging system.

Dion Generator Solutions: Generators and Batteries You Can Count On

We professionally install generators and ensure the battery is correctly fitted and fully operational for reliable performance, guaranteeing each system is ready when needed.

Rely on our experts for:

• Installing a new battery with your generator
• Ensuring the battery is properly connected and secured
• Inspecting all components for proper integration
• Replacing your old battery
• Checking for compatibility with auxiliary systems

Do You Need a Generator Battery Replacement?

Generator batteries typically last two to five years, depending on usage and maintenance. Over time, they can lose their ability to hold a charge or provide sufficient power to start your generator, especially in demanding conditions. Regular testing and care can generally improve their lifespan.

You should consider replacing the generator battery if your generator struggles to start, the battery shows corrosion, or it no longer holds a charge. Note that many units have built-in battery diagnostics that display the current state of your battery so you can monitor its condition.

Get Expert Generator Services for Your Battery and Unit

At Dion Generator Solutions, our generator services include both maintenance and installation for your unit and battery. If you have questions about power specifications or need assistance with replacements, our team is here to help.

Looking for generator batteries? Contact us at (305) 450-8787.