FAQs About Generac Batteries
At Grounded Electric, many homeowners ask how much a Generac generator battery costs. A replacement battery usually costs between $150 and $250, while a full replacement with labor often ranges from $300 to $500. Price depends on the battery type, installation, and service.
This guide explains the cost of Generac battery replacement, warranties, and tips from Robert “Bobby” Mulholland and project manager Barett Abramow.
Key Takeaways
- A Generac generator battery costs about 150 to $250, while a full replacement with labor costs 300 to $500.
- Most Generac models, like the 22kW unit, use a 12-volt Group 26R battery.
- Batteries last three to five years, depending on weather and care.
- OEM batteries have a one-year warranty, while some aftermarket brands offer longer coverage.
- A Generac generator will not run without a working battery.
How Much Does a Generac Battery Cost
Cost of a Battery for a Generac Generator
The cost of a battery for a Generac generator is usually $150 to $250. OEM models may cost more but include a warranty. Aftermarket options can be cheaper, but they must match the right size and specifications.
Backup batteries cost more than starter batteries.
Labor, Installation, and Service Fees
Installing a new battery often costs $ 200 per hour. With labor and parts, the total replacement cost can range from $300 to 500. Grounded Electric, led by Bobby Mulholland, offers safe and professional service.
Example Battery Models and Price Ranges
- 12 Volt 26R Battery – $150 to 200, 525–600 CCA.
- OEM Generac 26R – $180 to 250, warranty included.
- Aftermarket 12V AGM – $170 to 220, 2–3 year warranty.
Backup Battery vs Standard Starter Battery
Starter batteries power the ignition. Backup batteries are larger and provide additional storage, but they are more expensive. If you are unsure about the investment, read are Generac generators worth it to learn more.
Generac Generator Battery Types and Sizes
Generac Generator Battery Size and Compatibility
Most Generac models use Group 26R batteries. The wrong size can cause poor connections. For more on the brand, see who makes Generac generators.
12 Volt and 26R Battery Options
Many models use a 12 volt battery for Generac generator systems, often the 26R size. These are easy to find in auto parts and hardware stores.
Generac Generator Battery Replacement Basics
To replace a battery, disconnect the old one, clean the terminals, and connect the new unit. Barret Abramow advises testing batteries often to avoid failures during outages.
Generac 22kW Generator Battery Details
What Size Battery for Generac 22kW Generator
The 22kW Generac model uses a Group 26R 12-volt battery. Using a smaller one can damage the system and void the warranty.
Best Battery for Generac 22kW Generator
The OEM 26R battery is the best choice for the 22kW model. It is reliable and includes warranty coverage. Aftermarket batteries may be less expensive, but their quality varies.
Generac 22kW Generator Battery Replacement Cost
The Generac battery replacement cost for the 22kW model is often $300 to $500 with labor.
Battery Performance and Lifespan
How Long Does a Generac Battery Last
A Generac battery lasts three to five years. Cold weather and low use can shorten its life.
Signs of a Failing Battery
Slow cranking, dim lights, or corrosion mean the battery should be replaced.
Does a Generac Generator Charge Its Own Battery
Yes, most models include a built-in charger to keep the battery ready. If the charger fails, the battery will drain.
Operation and Safety Questions
Will a Generac Generator Run Without a Battery
No, a Generac generator needs a battery to start.
Risks of Using Car Batteries in Generac Units
Car batteries may fit, but they lose charge faster and can void the warranty. It is safer to use approved batteries.
How to Choose the Right Replacement
Finding the Correct Part Number
Check your generator manual for the right battery specs and part number.
Comparing OEM vs Aftermarket Options
OEM batteries cost more but guarantee fit. Aftermarket options are generally cheaper but must meet the OEM’s standards.
Battery Warranty and Maintenance Tips
OEM batteries typically come with a one-year warranty. Aftermarket options may last longer, with coverage up to three years. Clean terminals and test the battery twice a year to avoid problems.
Where to Buy Generac Generator Batteries
Authorized Dealers and Service Centers
Authorized dealers sell OEM batteries and offer installation. Buying here ensures warranty protection.
Online Retailers and Auto Parts Stores
OEM and aftermarket batteries are also sold online. Check specs before you buy, and when unsure, ask experts like Barret Abramow.
Keep Your Generac Generator Ready Year-Round
Choosing the right battery keeps your generator ready for outages. Grounded Electric’s licensed team, led by Robert “Bobby” Mulholland and Barret Abramow, provides expert advice and safe installation.
Schedule a consultation with Grounded Electric today to keep your system in top shape.
FAQs About Generac Batteries
Can I Use a Car Battery Instead?
Car batteries are not a good choice for standby use. They are not made for long storage.
How Often Should I Replace a Generac Battery?
Most batteries for Generac generators need replacement every three to five years. Many owners replace them during regular service of other tools, like lawn and garden equipment.
