For most TLX models, a standard 12-volt auxiliary battery replacement costs about 150 to 350 dollars for the battery itself, with installed total typically 200 to 450 depending on labor and whether you use aftermarket or factory parts. For the hybrid TLX e:HEV, the high-voltage battery replacement is far more expensive, generally around 4,000 to 7,000 dollars including parts and labor, though costs can be higher in some cases.
The Acura TLX uses a conventional 12-volt battery to run accessories and start the engine, while the hybrid e:HEV variant uses a high-capacity HV battery to power the electric motors. Prices depend on battery type (lead-acid vs. AGM), brand, warranty terms, location, and whether you purchase through a dealership or an independent shop. This article breaks down typical costs and what factors affect them.
12-volt battery cost for non-hybrid TLX models
What affects the price and what you should budget for
Below is a breakdown of common cost components and typical ranges you’ll encounter when replacing the TLX’s 12-volt battery. Prices vary by retailer, region, and whether you choose aftermarket or OEM parts.
- Battery price (aftermarket options): typically 90–200 dollars, with premium AGM or branded batteries running higher (around 200–260 dollars).
- OEM/dealer battery price: commonly 150–320 dollars for the battery itself; installation may add to the total if performed by the dealer.
- Labor and disposal: installation labor usually 60–120 dollars, depending on shop rates and accessibility of the battery.
In general, expect to pay roughly 180–450 dollars for a standard 12-volt TLX battery replacement when you include labor and disposal, with OEM parts pushing toward the higher end.
High-voltage battery cost for the TLX e:HEV
Costs and considerations for the hybrid battery
The TLX e:HEV features a high-voltage battery pack that is substantially more expensive to replace than the standard 12-volt unit. The following points cover typical price ranges and important considerations.
- Typical replacement cost: about 4,000–7,000 dollars for parts and labor; some cases, especially at independent shops or for larger packs, can be higher.
- Warranty coverage: hybrid high-voltage batteries are usually covered by a dedicated warranty, commonly 8 years/100,000 miles in the US, with some regions offering up to 10 years/150,000 miles. Warranty status can significantly affect out-of-pocket costs.
- Alternative options and safety: options such as remanufactured, rebuilt, or used HV packs exist but involve safety, compatibility, and reliability trade-offs; installation must be performed by a trained technician due to high-voltage systems.
Bottom line: If the TLX e:HEV’s high-voltage battery needs replacement outside of warranty, it represents a substantial investment. Obtaining multiple quotes and confirming warranty terms is advisable.
Summary: Battery costs for the Acura TLX vary widely by model. Non-hybrid TLX models typically require a few hundred dollars for a 12-volt battery replacement, including installation if done by a shop. The TLX e:HEV’s high-voltage battery replacement is a much larger expense, usually in the four- to seven-thousand-dollar range, with warranty terms offering potential protection against out-of-pocket costs. Always verify current pricing with local dealers and independent shops, and check warranty coverage for hybrid components.


