Non-hybrid Q50s use a 12-volt battery for starting the engine and powering electronics; the Q50 Hybrid adds a high-voltage battery as part of its hybrid propulsion system.
In more detail, Infiniti’s Q50 lineup comprises gasoline-powered models and a hybrid variant. The gasoline models rely on a conventional 12‑volt battery to start the engine, run accessories, and support the vehicle’s electrical system. The Hybrid combines that 12‑volt system with a separate high‑voltage battery pack that works with the electric motor and regenerative braking. Battery placement and service considerations vary by model year and trim, so checking the owner's manual or consulting a dealership provides the most precise guidance.
Standard Q50 (gasoline) battery
Before listing the core aspects of the standard Q50 battery, here are the essential points you’ll want to know about its 12‑volt system.
Key characteristics
- Battery type: 12‑volt lead-acid battery, with some newer trims using an AGM (absorbent glass mat) design to support Start-Stop and higher electrical load.
- Location: typically mounted in the engine bay, on or near the front of the vehicle.
- Primary role: supplies power to the starter motor, ignition system, lights, ECU, and other accessories; recharged by the alternator while the engine runs.
- Maintenance and replacement: use the OEM replacement or an equivalent with the same specs; have the battery tested if you notice slow cranking or electrical oddities; ensure terminals are clean and free of corrosion.
In summary, the gasoline Q50 relies on a standard 12‑volt battery to keep the vehicle’s electrical system running and to start the engine, with AGM variants offering improved reliability in modern configurations.
Q50 Hybrid battery system
Before detailing the hybrid specifics, note that the Q50 Hybrid includes a distinct high‑voltage battery in addition to the standard 12‑volt unit. This high‑voltage pack powers the electric motor and supports energy recovery during braking.
What to know about the hybrid pack
- High‑voltage battery type: lithium‑ion battery pack designed for hybrid propulsion and electric assist.
- Location: integrated with the hybrid system, commonly positioned in a rear‑area enclosure (under seats or within the rear structure, depending on the year); not typically accessible for user service.
- Voltage and capacity: a purpose‑built pack for hybrid operation; exact specifications are not usually published for consumer interchangeability and are managed by the vehicle’s battery management system (BMS).
- Safety and service: handling high‑voltage systems requires trained technicians; replacement or diagnostics are typically performed by a dealership or certified hybrid technician.
- Replacement considerations: the high‑voltage pack is often covered under specific hybrid warranties; consult Infiniti’s warranty terms for current coverage details.
The hybrid system has a separate energy source from the 12‑volt battery, enabling electric assist and regenerative charging while staying within safety parameters defined by the vehicle’s design and warranty.
Safety, maintenance and service notes
Battery work on a Q50—especially the high‑voltage hybrid pack—should be performed by qualified technicians. For the 12‑volt battery, standard precautions apply: disconnect if performing electrical work, avoid shorting terminals, and ensure proper re‑connection. Regular health checks and terminal cleaning can help prevent unexpected failure, while following Infiniti’s service intervals will help maintain reliability.
Summary
In short, the Q50’s standard, non-hybrid models use a 12‑volt lead-acid (often AGM) battery for starting and electronics. The Q50 Hybrid includes a separate high‑voltage lithium‑ion battery to power the electric drive and support energy recovery. Always refer to your specific model year’s manual or your dealer for exact battery type, location, and service requirements, as configurations can vary across trims and generations.
Why does the INFINITI Q50 have two batteries?
What kind of batteries does INFINITI use? This answer will depend on what model of INFINITI vehicle you drive. Not only do larger vehicles, like SUVs, typically need larger batteries than sedans, but if you have an INFINITI Q50 Hybrid, this system actually contains two batteries to provide different voltage levels.
What battery does a 2016 INFINITI Q50 take?
Optima Yellow AGM Top Post Battery Group Size 35 - YEL35.
What battery goes in a 2019 Infiniti Q50?
Showing Battery for Infiniti Q50 Sport 2019 V6 3.0L Gas
The X2Power Car Battery Group 35 | 740CCA is a premium AGM solution designed for vehicles with high electrical demands.
What battery does the Q50 take?
DieHard Platinum AGM – Battery : 35 Group Size, 650 CCA, 810 CA, 100 Minute Reserve Capacity (Part No. 35-AGM)