A replacement 12-volt battery for the Infiniti QX80 typically costs about $150–$350 for an aftermarket unit, and roughly $300–$600 if you buy an OEM battery and have it installed. Prices vary by year, source, and whether installation is included.
The Infiniti QX80 relies on a standard 12-volt starting battery to power the engine and the vehicle’s electronic systems. Replacement costs depend on the battery type (AGM versus flooded), the supplier, and whether installation is performed by a dealer or independent shop. This article breaks down typical prices, where to buy, and factors to consider when replacing the battery.
Battery types and specs for the Infiniti QX80
Most QX80s use a high-performance 12-volt battery designed for premium SUVs. Here are common specs you’ll encounter when replacing the battery:
- Type: 12-volt AGM (absorbent glass mat) battery is common in newer QX80s; some lighter-duty or older options may use flooded lead-acid.
- Voltage: 12V nominal.
- Cranking and reserve: AGM units typically offer higher cranking power and better reserve capacity to support modern electronics.
- Capacity range: Replacements often fall in the 60–78 amp-hour range to suit the QX80’s electrical load.
- Fitment: Batteries are designed to fit the QX80’s engine bay with compatible terminal layout; always confirm compatibility with your exact year and trim.
Understanding these specs helps you choose a battery that matches the QX80’s electrical demands and preserves warranty coverage.
Typical price ranges by source
Prices vary by source and whether installation is included. The following ranges reflect common options in the United States as of recent years:
- Aftermarket 12V AGM battery: about $120–$250.
- OEM Infiniti replacement (dealer): about $300–$600, depending on year and location, and sometimes including installation.
- Online retailers offering OEM-equivalent or aftermarket batteries: about $150–$350 (watch for shipping and warranty terms).
Shopping around and confirming compatibility with your QX80’s year and trim can yield savings, while OEM units typically offer the strongest warranty and precise fit.
Where to buy a QX80 battery
Several reliable avenues exist for purchasing a replacement battery. Consider these options and compare warranties and installation policies:
- Infiniti dealership parts departments for OEM batteries and installation.
- Auto parts stores (brick-and-mortar or online) such as AutoZone, Advance Auto Parts, NAPA, or O’Reilly.
- Online marketplaces and battery specialists offering OEM-equivalent units (Amazon, BatteryStuff, Battery Mart, etc.).
- Wholesale clubs or big-box retailers that stock automotive batteries and may offer installation services.
Evaluate warranty terms, returns, and whether installation or old-battery disposal fees are included in the price.
Installation and maintenance considerations
Where and how you install the new battery can affect total cost and reliability. Consider these factors when planning a replacement:
- Labor and installation fees: Dealer or independent garages typically charge a separate installation fee, often $50–$100 in addition to the battery cost.
- Warranty coverage: OEM batteries usually carry longer warranties; confirm whether online or third-party purchases are eligible for the same coverage with the installer.
- Disposal of the old battery: Reputable sellers and shops recycle old batteries and may include disposal fees or credits.
- System checks: Some shops test the charging system and alternator to ensure no underlying issues that could shorten battery life.
Factoring in installation, warranty, and disposal helps you choose the best value and avoid surprise costs later.
Summary
For the Infiniti QX80, plan for a 12-volt starting battery replacement to cost in the low hundreds for an aftermarket unit and into the mid-to-upper hundreds for OEM units, especially when installation is included. Verify whether the battery is AGM or flooded, confirm fitment for your model year, and compare multiple sources for price, warranty, and convenience. With careful shopping, you can secure a reliable replacement that keeps the QX80’s electronics and starting performance uninterrupted.


