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How much does it cost to replace the battery in a Toyota Avalon?

For most Avalon owners, the price you pay hinges on which battery needs replacement. A conventional 12-volt auxiliary battery is relatively affordable to swap, while the hybrid’s high‑voltage battery—found in Avalon Hybrid models—represents a significantly larger investment. In practical terms, expect roughly 150 to 350 dollars for a new 12‑volt battery installed, versus about 2,000 to 6,000 dollars or more for a hybrid battery replacement, depending on year, warranty, and whether you choose a new, remanufactured, or used pack.


Battery types in the Toyota Avalon


The Avalon line includes both non-hybrid versions that use a standard 12‑volt battery and hybrid versions that rely on a high‑voltage battery pack. This section outlines each type and what costs typically look like.


12-volt auxiliary battery


The 12‑volt battery powers the vehicle’s electrical system and starts the engine. Replacing it is straightforward and relatively inexpensive compared with hybrid battery work.


Costs to expect for a typical installed 12‑volt battery include:



  • Battery price (standard lead‑acid or AGM): generally 100–250 dollars

  • Labor: roughly 40–120 dollars

  • Disposal/core charges and small shop fees: up to about 0–20 dollars

  • Total installed cost: typically 150–370 dollars


In short, replacing the 12‑volt battery on a Toyota Avalon is usually a few hundred dollars or less, depending on the brand and local labor rates.


Hybrid high‑voltage battery


Avalon Hybrid models use a high‑voltage battery pack to power the electric drive. Replacing this pack is major work and far more expensive than a standard 12‑volt replacement. The cost varies widely based on pack type and source.


Costs to expect for a high‑voltage battery replacement include:



  • New OEM high‑voltage pack: about 2,000–3,500 dollars for the pack itself, plus 500–1,500 dollars for labor (total roughly 2,500–5,000 dollars)

  • Remanufactured/refurbished pack: about 1,200–2,800 dollars for the pack, plus 500–1,200 dollars for labor (total roughly 1,700–4,000 dollars)

  • Used/ salvaged packs: price can be lower, around 1,000–2,000 dollars for the pack, with similar labor costs (total roughly 1,500–3,500 dollars)

  • Warranty considerations: many hybrids carry an 8‑year/100,000‑mile warranty on the battery in the U.S., with variations by state and model year; some programs extend coverage to 10 years/150,000 miles or offer dealership warranty options


Overall, replacing the high‑voltage battery on a Toyota Avalon Hybrid is a multi‑thousand‑dollar decision, with costs driven by pack type (new vs remanufactured vs used) and installation complexity.


What affects cost and how to save


Several factors determine the final price when replacing an Avalon battery. Understanding them can help you save money or avoid surprises at the shop.



  • Battery type: 12‑volt vs high‑voltage hybrid pack (different parts, labor, and safety requirements)

  • Source of the pack: OEM new, remanufactured, or used/ salvaged units

  • Warranty: existing coverage can reduce out‑of‑pocket costs if the failure occurs within the warranty period

  • Labor rates: dealer vs independent shop, and regional price differences

  • Vehicle year and configuration: some Avalon Hybrid years have different pack designs and installation times


In practice, shopping around for quotes, checking warranty eligibility, and asking about the option of refurbished packs can meaningfully affect total cost.


Getting a quote and what to ask


To ensure you get an accurate estimate, follow these steps and ask targeted questions when you call or visit shops.



  1. Identify which battery your particular Avalon needs (12‑volt vs hybrid high‑voltage pack) and confirm the model year.

  2. Request separate estimates for parts and labor, and ask about any disposal or core charges.

  3. Ask whether the shop offers OEM, remanufactured, and used battery options, and the expected warranties for each.

  4. Inquire about the estimated time to complete the replacement and whether a temporary loaner or shuttle is available.

  5. Verify whether any recalibration, software updates, or resets are required after installation and whether those costs are included.


Getting multiple quotes and clarifying warranty terms can help you choose the best value while avoiding surprise fees.


Summary


For the Toyota Avalon, the cost to replace a battery depends entirely on which battery needs attention. A typical 12‑volt auxiliary battery replacement is a few hundred dollars, including parts and labor. By contrast, replacement of the hybrid high‑voltage battery is a substantial investment, commonly ranging from roughly 2,000 to 5,000 dollars or more when considering the pack type and installation. Warranty coverage can significantly affect out‑of‑pocket costs, so check your vehicle’s specific hybrid warranty and explore options for new, remanufactured, or used packs. Always obtain multiple quotes and ask about included services to ensure you’re getting the right solution for your Avalon and budget.

How long does a battery last in a Toyota Avalon?


between 3 to 5 years
Your Toyota Avalon battery will consistently last between 3 to 5 years, but that can vary heavily depending on battery size, weather conditions type of battery, and driving habits. Even still, just because your battery isn't completely dead, doesn't indicate it's operating at optimal levels.



How much is a battery for a 2019 Toyota Avalon?


How much to replace the battery in my Toyota? Depending on power, size, and quality, prices for a replacement car battery range from about $45 to $250. Your local dealership, auto parts store or automotive service center can check your current battery or hook you up with a new car battery.



How much does a dealer charge to replace a battery?


Battery Cost: $100–$250 (for typical lead-acid or AGM batteries). Labor Costs: $50–$150, depending on the complexity of the replacement. Total Cost: $150–$400.



What year to stay away from Toyota Avalon?


The Short Answer: The Toyota Avalon 2005, 2006, 2007, 2008, 2011, 2013, 2014 Models Should be Avoided. These models have a higher incidence of reported issues, including significant problems like engine failure and minor problems such as cracked dashboards.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.