The Infiniti G37 uses a standard 12-volt automotive lead-acid battery; the exact size and type can vary by model year and trim.
Overview of the G37 battery type
Understanding the G37’s battery involves knowing its basic chemistry, the typical group sizes, and the options available when replacing it. This section explains what to expect when shopping for or replacing a G37 battery.
Key characteristics to know when identifying or replacing the G37’s battery:
- Voltage: 12 volts, which is standard for most gasoline-powered passenger cars
- Chemistry: commonly flooded lead-acid; some replacements are AGM (absorbed glass mat) if desired or recommended by a retailer
- Group size: commonly around Group 35 for many Infiniti sedans of this generation; always verify the exact size on the current battery label or in the owner's manual
- Cranking capability: needs to meet or exceed the original cold-cranking amps (CCA) rating to ensure reliable starts in winter conditions
- Reserve capacity: a factor in how long the electrical systems can run if the alternator isn’t supplying power
In practice, most Infiniti G37 owners replace with a standard 12-volt flooded lead-acid battery that fits the vehicle’s group size; AGM options are available from aftermarket retailers for those who want higher performance or longer life in demanding climates.
How to determine the right battery for your G37
To ensure you get the correct battery, use these steps to identify the right group size and specifications for your G37:
- Check the owner’s manual or the existing battery label for the exact group size (for example, Group 35 or another standard size)
- Look for the correct CCA and RC (reserve capacity) ratings on the battery label or in the vehicle’s specifications
- When shopping, compare the replacement battery’s group size and electrical ratings with the OEM requirements
- Consider AGM if you have high electrical demand or want longer life in extreme temperatures; confirm compatibility with your vehicle’s electrical system
Always verify the correct group size and ratings before purchasing, as using an incorrect size can cause fitment issues or reduced performance.
Summary
For the Infiniti G37, the standard battery is a 12-volt automotive lead-acid unit. The exact group size and whether you choose a flooded or AGM design depend on the model year, trim, and your local climate. When replacing, reference the owner’s manual or the existing battery label to confirm the correct group size, CCA, and RC, and consider AGM options if you want enhanced performance in demanding conditions.