10 Best Battery for Infiniti Q50 Reviews

You love your Infiniti Q50 for its sleek design and spirited performance, but nothing puts a damper on that driving experience like a dead battery—whether it’s the main unit under the hood or the one inside your key fob. Maybe you’ve been stranded in a parking lot when the engine refused to crank on a cold morning, or you’ve stood helplessly pressing the unlock button with no response. These frustrations are all too common, but finding the right power source for your Q50 doesn’t have to be a guessing game.

In this guide, you’ll discover the top-rated batteries and related components specifically suited for the Infiniti Q50. We cover everything from high-performance AGM starting batteries that handle start-stop systems and extreme weather to reliable CR2032 coin cells for your smart key fob. Whether you’re after maximum cranking amps, deep-cycle resilience, or a simple key fob fix, you’ll find clear, detailed reviews to help you make an informed choice without the headache of trial and error.

Mighty Max Battery MM-G35 – Reliable AGM Power for Your Q50

If you’re looking for a dependable drop-in replacement for your Infiniti Q50’s group size 35 battery, the Mighty Max MM-G35 deserves a close look. This 12V 55Ah AGM battery delivers 650 cold cranking amps—plenty of juice to fire up your Q50’s engine even on the chilliest mornings. Its 100-minute reserve capacity means you can run accessories or sit in stop-and-go traffic without worrying about losing starting power. The sealed, spill-proof design is a huge plus: you can mount it in nearly any position, and there’s zero risk of acid leaks damaging your engine bay.

The rugged construction resists shock and vibration, which is exactly what you need if you drive on less-than-perfect roads. The MM-G35 also handles deep discharge recovery impressively well for an AGM battery, so if you accidentally leave your lights on, it has a better chance of bouncing back than a standard flooded battery. Installation is straightforward with the standard SAE terminals, and it fits the Q50’s battery tray with no modifications. For a balance of price and performance, this is a solid, no-nonsense choice.

View all product features

• Fast Starting Power: This 12V 55Ah 650 CCA delivers strong, steady starts is ready for any weather in any season.
• Made to Last: With its 100-minute Reserve Capacity supports longer run times and a longer overall battery lifespan.
• All Power, No Mess AGM Design: Sealed and spill-proof, the MM-G35 is built with high discharge output and deep discharge recovery to keep power steady when it counts.
• Strength That Starts on the Inside: The rugged construction resists shock, vibration, and harsh conditions, delivering reliable performance across a wide range of temperatures and tough environments.
• Tested Tough & Certified Safe: Mighty Max batteries are built in an ISO-certified facility and meet CE standards for quality, safety, and reliability
• Rechargeable and Versatile: Mounts in multiple positions (excluding upside down) for flexible vehicle installation.
• Dimensions: Sized at 9.06 x 6.89 x 8.82 inches, ready to fit your ride with ease. Polarity is easy to spot, with the positive terminal on the right and the negative on the left.
• Included: Each battery includes mounting screws for quick, hassle-free installation.
• Not Included: Wire harness and mounting accessories are not included.
• 3 Year Warranty: Mighty Max strength, long-haul protection, and confidence that you’re powered to the max.

---

Key Battery Outlet CR2032 (2-Pack) – OEM-Quality Key Fob Cells

When your Infiniti Q50 key fob starts acting finicky—needing multiple presses or not working from a distance—it’s almost always time to swap the battery. This two-pack from Key Battery Outlet uses genuine OEM-quality CR2032 lithium cells that deliver a strong, consistent 3V signal. They’re engineered to match the exact specifications of the original battery, so you get a precise fit inside your fob without any wobble or poor contact. The pack includes two batteries, giving you a spare or one for a second key.

Compatibility is broad for Infiniti models with CR2032 fobs, including the Q50 from 2016 to 2022. Simply pop open the fob casing (a small flathead or pry tool works—sometimes included), swap the old cell for this one, and you’re back to seamless remote access. No reprogramming required. The batteries have a long shelf life, so you can keep the spare in your glove box without worry. For a quick, affordable fix, this kit is hard to beat.

View all product features

• Comprehensive Replacement Kit – Two CR2032 coin batteries for a quick, seamless Infiniti key fob swap.
• OEM-Quality Cells – High-purity 3V lithium CR2032 for strong signal, precise fit, and reliable everyday performance.
• Wide Infiniti Compatibility – For fobs that specify CR2032: EX35 (2008–2012), EX37 (2013), FX35 (2009–2013), FX37 (2013), FX50 (2009–2013), G25 (2011–2012), G35 (2007–2008), G37 (2008–2013), JX35 (2013), M35 (2013), M37 (2011–2013), M56 (2011–2013), Q40 (2015), Q50 (2016–2022), Q60 (2014–2022), Q70 (2014–2019), QX50 (2014–2021), QX55 (2022), QX56 (2011–2013), QX60 (2014–2020), QX70 (2014–2017). Always confirm your battery code is CR2032.
• Not Compatible – Remotes using CR2025/CR1616/CR1632, rechargeable/built-in cells, or any key that does not list CR2032. Check your owner’s manual or the current battery.
• Install Video – Follow our step-by-step video to finish in minutes while helping protect your key fob case during battery replacement.

---

Lucrum CR2032 (2-Pack) – Extended Lifespan for Your Key Fob

The Lucrum CR2032 batteries are engineered with a higher capacity of 240mAh, which translates to a longer lifespan inside your Infiniti Q50’s key fob compared to some standard cells. That means fewer interruptions and less frequent replacements—a small convenience that adds up over the years. They maintain a stable 3V output, so your remote’s range stays consistent until the battery is nearly depleted. The set comes with two batteries, perfect for a primary and spare key.

These cells are specifically designed to match OEM specs for the Infiniti Q50 (2016-2022) and a wide range of other models like the Q60 and Q70. They’re also versatile enough to power small electronics like scales or pet collars, but their main job—keeping your key fob responsive—is handled flawlessly. The installation is simple: use a small tool to open the fob, replace the battery, and you’re done. For a slight upgrade in longevity, Lucrum is a smart pick.

View all product features

• Extended Lifespan: Our CR 2032 battery for key fob is engineered for longevity, offering a reliable 240mAh power source for your key fob and more, ensuring your devices run longer.
• Precise Compatibility: Ideal for Infiniti models, this CR 2032, 3 volt coin battery matches OEM specifications for Q50 (2016-2022), Q60 (2014-2022), Q70 (2014-2019), QX50 (2014-2021), QX60 (2014-2020), QX70 (2014-2017) and other models listed in description
• Peak Performance: Experience consistent power with our for Infiniti Q50 key fob battery, crafted to keep your key fob and small electronics operating smoothly in any situation
• Versatile Utility: Not just for cars, our CR 2032 battery powers a range of devices, from food scales to pet collars, offering the CR2032 3v battery's versatility you can depend on
• DIY Replacement: Save on service fees with our easy-to-install CR2032 3-volt battery, simplifying DIY replacements for a hassle-free experience

---

UPLUS Group 35 AGM Battery – Superior Cycling for Start-Stop Q50s

If your Infiniti Q50 is equipped with a start-stop system—common on newer models—you need a battery that can handle frequent recharging cycles. The UPLUS Group 35 AGM battery is built specifically for that challenge. It uses high-density negative paste and enhanced alloy grids, giving it up to four times the cycle life of a standard flooded battery. With 650 CCA and 88 minutes of reserve capacity, you get ample starting power and enough reserve to run electronics during short stops. The dimensions (9.51 x 6.85 x 8.78 inches) match the OEM group size, so it fits perfectly in your Q50’s battery tray.

The terminal layout is standard left-negative, right-positive, matching most Q50 installations. UPLUS also claims the battery is ideal for vehicles with large electrical loads like heated seats, navigation, and power doors—all features your Q50 likely has. The AGM design is maintenance-free, meaning no topping off with water, and it’s more resistant to vibration than conventional batteries. If you drive in heavy traffic or make frequent short trips, the UPLUS battery’s deep-cycle resilience can prevent premature failure.

View all product features

• Battery dimensions — BCI Group size 35, 9.51 x 6.85 x 8.78 inches, Terminal Layout: Left: – Right: +. Battery dimensions, cold cranking amps, terminal location and battery type are key factors in getting the right unit. Please measure your old battery and compare the size with this battery, if the measurements are the same, the positive and negative positions are the same, there is not much difference in CCA and it will fit your vehicle.
• 4 TIMES EXTRA CYCLING — High density negative paste and Enhanced life alloy or Silver Calcium stamped alloy.Uplus Start and Stop AGM battery has 4 times extra cycle life compared to standard conventional batteries.
• DESIGNED FOR VEHICLES WITH START-STOP — International standard size BCI Group 35, easy to install.Ideal for vehicles with large electrical loads (DVD players, navigation systems, heated seats, power doors, etc.), vehicles used for frequent short trips or in stop-n-go traffic and vehicles that sit unused for days or weeks at a time.
• DEEP-CYCLE AND CRANKING POWER — Calcium lead positive grid, maximizes conductivity and allows for low resistance.Highest cold cranking amperes (650CCA) for engine starts, even reliable during cold winter temperatures.
• TOP-LEVEL SAFETY — 15 times more vibration-resistant.Vent cap design that resists acid leakage.Top-level safety features and absolutely no free acid.Original Spare Parts ensure the replacement battery has the same quality as the original one.
• LOCAL AFTER-SALES SUPPORT — 3-year warranty. UPLUS has a fixed office and warehouse in California and Georgia, responds within 12 hours.

---

ZIWLU CR2032 (2-Pack) – OEM Factory Batteries for Smart Fobs

ZIWLU prides itself on providing the same batteries that manufacturers originally placed in Infiniti smart keys—so you’re essentially getting a factory replacement. These CR2032 cells are manufactured with high-purity raw materials and precision processes, resulting in stable voltage and a long shelf life. The two-pack includes a handy pry tool that makes opening your Q50’s key fob without scratching the casing a breeze. You also get step-by-step video instructions, which is helpful if you’ve never changed a key fob battery before.

Compatibility covers Infiniti models from 2007 to 2020 that use a CR2032 battery in their smart remote. That includes the Q50, Q60, and many others. The batteries are rated for consistent power output, so you won’t experience intermittent fading or reduced range until the battery is almost dead. The inclusion of the pry tool and video guidance makes this kit especially beginner-friendly. For a hassle-free replacement experience, ZIWLU delivers.

View all product features

• **Please check the second product image to confirm compatibility (Installation Videos + Tools Included)**
• 【SCOPE OF USE】 For 2007-2020 Key Case Shell Prox Proximity, Compatible with Infiniti EX35 FX35 FX37 FX50 G25 G35 G37 JX35 Q40 Q50 Q60 Coupe QX50 QX60 QX70 Smart Key Fob Cases.[Please confirm that your car key uses a CR2032 battery (can be found on the back of your battery), some key fobs may use the CR2025 battery. ]
• 【ORIGINAL OEM BATTERY】Original OEM Battery as Provided by Manufacturer, ensuring seamless compatibility and maximum performance for your fob. (Keyless entry remote fob not included.)
• 【STABLE VOLTAGE OUTPUT & HIGH PERFORMANCE】Using high quality core raw materials and precision manufacturing process make battery safer.(Long Lasting with long expiry date.)
• 【HIGH SAFETY AND EASY INSTALLATION】Avoid expensive dealer service charges for battery replacement, remote reprogramming is not required. Opening/Pry Tool included to help you open the remote without scratching or damaging your remote case.

---

OPTIMA RedTop 35 – Premium SpiralCell Starting Power

If you want the absolute best starting performance for your Infiniti Q50, the OPTIMA RedTop 35 is a legend in the automotive battery world. With 720 cold cranking amps—significantly more than many group size 35 batteries—this battery fires up your engine instantly, even in subzero temperatures. But what sets OPTIMA apart is its patented SpiralCell technology: 99.99% pure lead rolled into spiral plates. This design gives the RedTop 15 times more vibration resistance than a standard flooded battery and up to three times longer service life. The 90-minute reserve capacity provides plenty of backup for accessories.

At just 31.7 pounds, the RedTop is lighter than many AGM batteries of similar capacity, and its compact dimensions (9.38 x 6.75 x 7.69 inches) allow for versatile mounting—including on its side if needed (though you probably won’t need to in the Q50). The SAE post terminals are standard and easy to connect. The RedTop is a pure starting battery, not meant for deep cycling, but if your priority is unstoppable cranking power and longevity, this is the cream of the crop. It carries a premium price, but many owners consider it a one-time investment that outlasts multiple cheaper batteries.

View all product features

• BATTERY SPECS: 12-Volt, 720 Cold Cranking Amps, Size: 9.38" Long x 6.75" Wide x 7.69" Tall, Weight: 31.7 pounds, SAE Post Terminals, C20 Capacity: 44 AH
• RESERVE CAPACITY of 90 minutes for constant performance. Faster charging capabilities.
• SPIRALCELL TECHNOLOGY: SPIRALCELL TECHNOLOGY with 99.99% pure lead delivers more power and consistently outperforms conventional flat-plate batteries. Optimal starting power even in bad weather.
• LONG LASTING: Fifteen times more resistant to vibration than standard flooded battieres for durability and Up to 3 times longer life vs. standard flooded batteries.
• MAINTENANCE FREE: For maximum convenience. Ideal for basic electrical demands.

---

KKNCO Key Fob Battery (2-Pack) – Complete Kit with Tools and Video

The KKNCO key fob battery replacement kit is designed to make your life as easy as possible. It comes with two CR2032 batteries plus two opening/pry tools—a total of five items in the bundle. That’s enough to tackle both of your Q50 key fobs with ease. The batteries are identical to what manufacturers install in smart remotes, so they fit perfectly and deliver the right voltage (3V) for consistent long-range operation. The kit explicitly works with FCC ID KR5TXN7, which is common on many Infiniti fobs from 2007-2020 including the Q50.

One of the standout features is the step-by-step video installation guide accessible via a link on the packaging. This is huge if you’re visually oriented and want to avoid scratching your fob or damaging the clips. The included pry tools are dual-purpose: they help you open the fob casing and also assist in removing the old battery. No programming is required after swapping—your fob works immediately. For a complete, foolproof solution, KKNCO covers all the bases.

View all product features

• PACKAGE INCLUDED : Two (2) CR2032 Remote Fob Battery and Opening/Pry Tools , Five item bundle (total 5pcs) , PLEASE NOTE: Keyless entry remote fob not included.
• GENUINE QUALITY : Original OEM Battery as Provided by Manufacturer , Same batteries as provided by OEM original manufacturer in all (Smart Key) remote fobs. (Refer to product images to confirm compatibility). Works with FCC ID: KR5TXN7
• EASY INSTALLTION: Avoid a Service Appointment for Battery Replacement , Battery replacement is simple and remote reprogramming is not required. Dual purpose opening tool included to help open the remote (without scratching or damaging your remote case) and to remove the battery.
• VIDEO INSTALLTION: Step-By-Step Installation Video Included , Detailed instructional video included (via link on product packaging) demonstrating the battery replacement procedure.
• PRY TOOLS : to Assist Dual purpose opening tool included to help open the remote (without scratching or damaging your remote case) and to remove the battery.

---

Vaticas Positive Battery Fuse Terminal – Robust Power Protection for Q50

While not a battery itself, the Vaticas Positive Battery Fuse Terminal is a critical upgrade for your Infiniti Q50’s electrical system. Designed specifically for Q50 and Q60 models with the 3.0L engine (2016-2020), this terminal integrates the battery post and fuse holder into one unit. It replaces the OEM part 24110-6HB0A and provides a more stable connection, reducing voltage drops and ensuring consistent power to your car’s electronics. The five-way fuse arrangement includes ratings of 100A, 100A, 50A, 100A, and 100A, acting as intelligent circuit protection against overloads.

Made from high-quality copper alloy, the terminal offers excellent conductivity and is built to resist wear and rust. Installing it can resolve intermittent electrical issues like flickering lights or accessory glitches if your factory terminal has corroded or become loose. The design automatically fuses if too much current flows, protecting sensitive modules from damage. If you’re already replacing your main battery, upgrading this terminal is a smart move to ensure your new battery’s power reaches every component reliably. It’s a straightforward bolt-on part that can improve overall electrical system health.

View all product features

• Integrated Power Protection: Integrated design of battery terminals and fuse holders provides a more stable connection and stable power output, effectively preventing electrical system overload and ensuring the safe operation of various electronic equipment in the vehicle
• Intelligent Automatic Fuse: 5-way rated current 100Amp, 100Amp, 50Amp, 100Amp, 100Amp, automatically fuses when exceeding the safe current, effectively preventing circuit overload damage and ensuring power safety
• Reliable and Durable: Made of high-quality copper alloy, it ensures efficient and stable current transmission, improves the vehicle's starting response speed, and has excellent wear and rust resistance, making your vehicle's electrical system long-lasting and reliable
• Compatible Models: Fit for Infiniti Q50 3.0L 2016-2020, fit for Infiniti Q60 3.0L 2017-2019, replace 24110-6HB0A 24110 6HB0A 241106HB0A, please confirm whether it is compatible with your model before purchasing
• Easy Installation: Direct replacement without complicated tools or professional skills, saving maintenance time and cost, allowing your car to be easily restored to its best condition

---

uuam CR2032 (2-Pack) – Budget-Friendly Key Fob Batteries with Tools

The uuam key fob battery pack gives you two CR2032 cells plus two pry tools, all at a very competitive price. These batteries are the same type installed by manufacturers in Infiniti smart keys from 2007-2020, including the Q50, Q60, and many others. The voltage output is stable at 3V, ensuring your remote’s signal remains strong until the battery naturally depletes. The included pry tools are simple plastic levers that make opening your fob without damage easy. For the cost-conscious owner, this kit provides excellent value.

Each battery is sealed in fresh packaging with a long expiry date, so you can store the spare for a year or more without worry. The kit also comes with a link to step-by-step video instructions—helpful if you’ve never changed a key fob battery. Compared to buying a single battery at a big-box store, this two-pack with tools saves you money and time. Just confirm that your particular Q50 remote uses a CR2032 (most do from 2016 onward). For a no-fuss, low-cost fix, uuam gets the job done.

View all product features

• Pack Including: Two (2) Pieces CR2032 Remote Key Fob Batteries and Opening/Pry Tools – Five item bundle (total 5pcs), Please check Amazon details Confirmed Fit to ensure that this is the correct battery for your remote.
• Original Battery as Provided by Manufacturer. Compatible with all 2007-2020 Smart Key remote fobs. PLEASE NOTE: Keyless entry remote fob not included.
• Avoid a service appointment by replacing your keyless entry remote fob battery yourself. Detailed easy-to-follow video provided to demonstrate the battery change process. (without scratching or damaging your remote case).
• Includes step-by-step installation videos – contains detailed instructional videos (via the link on the product packaging) that demonstrate the battery replacement process.
• Easy to Install : Avoid a Service Appointment for Battery Replacement , Battery replacement is simple and remote reprogramming is not required. Dual purpose opening tool included to help open the remote (without scratching or damaging your remote case) and to remove the battery.

---

BBXSA CR2032 (2-Pack) – Simple Swap with Included Pry Tool

BBXSA offers a straightforward solution for your Infiniti Q50 key fob battery woes. This two-pack of CR2032 lithium cells includes a single pry tool designed to help you open the fob without scratching the plastic. The batteries are the same as those originally installed by the manufacturer, ensuring a perfect fit and reliable electrical contact. The 3V output is consistent, giving you full remote range from day one. Installation takes only a couple of minutes: pop open the fob, replace the old battery with a new BBXSA cell, and close it back up.

The kit is compatible with a wide range of Infiniti smart key fobs from the EX, FX, G, Q, and QX series, covering the Q50 among others. It’s always wise to check your current battery code—if it’s CR2032, you’re good to go. The inclusion of the pry tool saves you from hunting for a small screwdriver or knife that could damage the fob. For a reliable, no-fuss replacement that gets your key fob back to 100%, BBXSA delivers exactly what you need.

View all product features

• **Please confirm fitment with our listing images and make sure the CR2032 battery will fit your key's battery**- Batteries included are the same as provided by the manufacturer ensuring perfect fit and great reliability.
• Avoid expensive dealer service charges and easily replace your key fob battery yourself – only takes a few minutes – no programming required – guide to changing your key fob battery in the description.
• A pry tool will be included with this kit to make your replacement easy as possible and not damage your key in the process.
• Compatible with Infiniti EX35 FX35 FX37 FX50 G25 G35 G37 JX35 Q40 Q50 Q60 Coupe QX50 QX60 QX70 Smart Key Fob Cases.
• INSTALLATION VIDEO – A quick and easy to follow install video will be supplied to replace your replacement battery for Infiniti's.

---

Buyer’s Guide: What to Consider

Choosing the right battery for your Infiniti Q50 involves more than just picking the first one you see. You need to consider the physical size, power delivery, and technology type to match your driving habits and climate. Whether you’re replacing the main starting battery or the tiny cell in your key fob, understanding a few key factors can save you from wasting money or dealing with a repeat failure. Here are the most important things to keep in mind.

• Battery Group Size (35): The Infiniti Q50 requires a Group Size 35 battery. Always verify the dimensions, terminal location (left negative, right positive), and post type (SAE top post) before purchase. Using the wrong size can cause poor fitment or short circuits.
• Cold Cranking Amps (CCA): CCA measures starting power in cold weather. For the Q50, a battery with at least 650 CCA is recommended, especially in colder climates. Higher CCA (like 720 from OPTIMA) provides extra insurance for frigid starts.
• Battery Type: AGM vs. Flooded: The Q50 often leaves the factory with an AGM battery, especially if it has start-stop technology. AGM batteries are spill-proof, resist vibration, and handle cycling better. Flooded batteries are cheaper but may not last as long in modern cars with high electrical demands.
• Reserve Capacity (RC): Reserve capacity indicates how long the battery can run your electronics if the alternator fails. A rating of 90–100 minutes is ideal for the Q50, as it supports the many electronic systems (infotainment, lights, seats) during short trips or while parked.
• Key Fob Battery: CR2032 Compatibility: Most Infiniti Q50 key fobs from 2016-2022 use a CR2032 lithium coin cell. Always confirm by checking your current battery code. Avoid generic substitutes that may have lower voltage or shorter life. Buying a two-pack gives you a spare for the second fob.
• Key Fob Installation and Tools: Some key fob battery kits include pry tools and video instructions. This can save you time and prevent damage to the fob casing. If you're not handy, look for kits that provide these extras. No reprogramming is needed after battery replacement.
• Additional Accessories (Battery Terminals): If your existing battery terminal or fuse box shows corrosion or looseness, replacing it with an upgraded unit like the Vaticas terminal can improve electrical stability. This is especially relevant if you're already replacing the main battery.

Conclusion

When it comes to keeping your Infiniti Q50 powered up, you have excellent options for both the main starting battery and the key fob. For the engine bay, the OPTIMA RedTop 35 stands out for its unmatched cranking power and longevity, while the UPLUS Group 35 AGM is a wise choice if your Q50 has a start-stop system. The Mighty Max MM-G35 offers a solid balance of performance and value for everyday driving.

For your key fob, many of the kits reviewed—like those from KKNCO, ZIWLU, and BBXSA—come with pry tools and video guides to make replacement foolproof. Don’t overlook the Vaticas battery fuse terminal if you want to enhance electrical system reliability. No matter which products you choose, always verify compatibility and specifications. A well-chosen battery ensures your Q50 starts strong and your key fob responds instantly every time.