In most Buick Enclave models, the vehicle uses a standard 12-volt lead-acid battery. This is not the high-voltage hybrid battery; the 12-volt battery powers starting and the vehicle’s electronics. The exact size and type can vary by model year and trim, so always check the label on your current battery or the owner’s manual when buying a replacement.
Under the hood, the Enclave relies on the 12-volt battery for engine start and to keep lights, infotainment, and other systems running. Some configurations with higher electrical demand or idle-stop features may call for an AGM (absorbed glass mat) battery, but many models continue with a conventional maintenance-free battery. Confirm your specific year and equipment to determine the right specification.
Battery basics for the Buick Enclave
Understanding the core aspects of the Enclave’s 12-volt battery helps when replacing or upgrading. Here are the key points to consider.
- Voltage and type: 12-volt lead-acid battery, typically sealed and maintenance-free for ease of service.
- AGM vs flooded: Most Enclaves use a conventional flooded or maintenance-free battery, but models with higher electrical demand or idle-stop/start systems may benefit from an AGM battery.
- Group size: The exact battery group size depends on the model year and trim. Common GM group sizes include 78 (also called H6) or 90, but you should verify the label or manual for your vehicle.
- Capacity: Expect a cold-cranking amp (CCA) rating in the typical SUV range (roughly 600–800 CCA) with adequate reserve capacity to support accessories.
- Location and accessibility: The battery is located in the engine bay and is accessible for inspection, testing, and replacement with basic tools.
In short, the right replacement should match the group size and CCA rating specified by GM for your exact vehicle. When in doubt, consult the owner’s manual or a dealer service advisor.
Choosing the right battery for your Enclave
To ensure you source the correct unit, follow these steps to identify the right battery for your model year and equipment.
- Inspect the current battery’s label to read the group size and CCA rating, usually printed on a sticker or embossed on the top.
- Use your VIN to cross-check the official GM battery specification in the parts catalog or with a Buick dealer.
- Consider whether your build includes idle-stop/start or high electrical demand; such configurations often favor an AGM battery.
- Match the replacement to the specified group size, CCA, and reserve capacity (RC) to ensure proper fit and performance.
- If replacing yourself, bring the old battery to the parts store to confirm fit and terminal orientation (positive/negative) for your vehicle.
- Dispose of the old battery responsibly at a recycling center or store that accepts used batteries.
By confirming the exact specs and choosing the right type, you ensure reliable starts and electrical performance for your Enclave.
Summary
The Buick Enclave uses a 12-volt lead-acid battery for starting and electronics. The correct size and type depend on the model year and equipment, with AGM variants available for higher-demand configurations. Always verify group size, CCA, and reserve capacity against OEM specs and consult the manual or a dealer if unsure. This approach helps ensure a reliable, hassle-free replacement and long-term reliability.
How much is a battery for a Buick Enclave?
The best part is, our Buick Enclave Batteries start from as little as $209.99.
What type of battery does the Buick Enclave use?
EverStart Plus Lead Acid Automotive Battery, Group Size H6 / LN3 / 48 12 Volt, minimum 615 CCA.
What battery does a 2020 Buick Enclave take?
DieHard Platinum AGM – Battery : H6 Group Size, 760 CCA, 950 CA, 120 Minute Reserve Capacity (Part No. H6-AGM)
What battery goes in a 2017 Buick Enclave?
Out of 7 Batteries and Chargers that fit 2017 Buick Enclaves, the following parts are the top sellers: Yellow Battery : H6 Group Size, 800 CCA, 928 CA, 140 Minute Reserve Capacity, Deep-Cycle (12023820) – $369.99.


