A replacement battery typically costs about $100–$250, depending on the battery type and where you buy it.
The 2005 Acura RL uses a standard 12-volt automotive battery. Prices vary based on whether you choose a basic flooded lead-acid unit, an AGM (absorbed glass mat) battery, or an OEM replacement from a dealer. Brand, warranty, and any installation fees can also affect the final price. The following sections break down what drives cost and where to shop.
Factors that affect price
Understanding what drives cost
Prices change with battery type, branding, warranty, and where you purchase. Here are the main influences to consider.
- Battery type: standard flooded lead-acid batteries are usually cheaper than AGM batteries, which offer longer life and better performance in some climates.
- Brand and OEM status: aftermarket brands are typically less expensive than Honda/Acura OEM batteries.
- Warranty and longevity: longer warranties can raise upfront price but may save money over time.
- Retailer and location: dealer prices tend to be higher; independent auto parts stores and warehouse clubs often offer lower prices.
- Installation costs: professional installation adds to the total if you choose to have it installed rather than DIY.
In short, your cheapest option is usually a standard flooded battery from an aftermarket brand, while AGM or OEM batteries tend to cost more but deliver longer life and reliability.
Typical price ranges by option
Before buying, it helps to know the ballpark ranges you might encounter in the current market.
- Flooded lead-acid battery (standard): roughly $70–$150 before tax
- AGM battery: roughly $120–$250 before tax
- OEM Honda/Acura replacement from a dealership: roughly $150–$300 before tax
- Installation and labor (if applicable): about $50–$120 at a shop
Prices can fluctuate with promotions, regional factors, and availability. Always verify the exact size and compatibility for your RL by checking the current battery label or the owner's manual before purchase.
Where to buy
Popular sources for a 2005 Acura RL battery include both brick-and-mortar stores and online options.
- Auto parts chains such as AutoZone, Advance Auto Parts, or O'Reilly Auto Parts
- Warehouse clubs and big-box retailers where available
- Honda/Acura dealership service centers for OEM replacements
- Online retailers that offer shipping and installation options
Compare warranties, delivery or installation options, and whether the retailer includes installation with the purchase.
How to identify the correct battery
To ensure you buy the right unit, confirm the battery group size and specifications for your 2005 RL. The exact group size is listed on the current battery label or in the owner's manual. If you’re unsure, ask the retailer to verify compatibility with your vehicle’s VIN or model year.
Summary
For a 2005 Acura RL, replacement battery costs generally range from about $100 to $250, with basic flooded options on the lower end and AGM or OEM batteries on the higher end. Labor, warranty length, and retailer choice all influence the final price. By checking your vehicle’s specs and shopping around, you can balance upfront cost with long-term reliability.