Panasonic N-Q100/A3 (Q85) 12V 670CCA EFB Start/Stop Automotive Battery

Panasonic N-Q100/A3 (Q85) 12V 670CCA EFB Start/Stop Automotive Battery


In stock


  • Made in Japan.  The No. 1 Factory Original Fit.
  • Perfect for Idle Start-Stop.
  • Q85 Size with much more Power!
  • Ideal for Toyota, Mazda, Subaru, Honda, etc.
  • Blue Case is TOP SPEC from Japan.
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Availability: In stock (can be backordered) SKU: N-Q100-A3
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Panasonic N-Q100/A3 (Q85) 12V 670CCA EFB Start/Stop Automotive Battery

Panasonic Batteries are the No.1 Japanese Brand fitted at the Factory. They are the “Original Equipment Manufacturer” (OEM) Battery fitted in many of the worlds top brands such as Lexus, Subaru, Nissan, Toyota, Mazda and many others. The Engineers from these companies know that reliable performance, year after year, is a crucial requirement. They work with Panasonic Engineers to create the most reliable high quality batteries for both Standard and Battery-Hybrid models. The Design specifications have always needed to balance long life in hot and cold climates, along with good starting power and strong reserve capacity to run the vehicle’s electronic computers and accessories. This requires stable voltage in all conditions, especially for newer models fitted with Idle-Start-Stop (ISS) systems. The Original Panasonic battery fitted in these cars must power the car for much of the time as the alternator is placed “at idle” to save fuel. These ISS systems may require dozens of vehicle starts for a typical city commute, unlike older cars which required only a single start each trip. Finally, if the charging system is idle for the latter part of the journey then the vehicle may be parked up in a partial state of charge (SOC). The effect of this is that the battery is “cycled” to a much lower state of charge than was ever the case before, and thus the specification and quality must be exceptionally high.

So for example the most common battery case size (a D23L) is rated at “50” or “55” by most aftermarket manufacturers (e.g. 55D23L), and at “85” in the exact same case size for most Original Equipment (Factory Fit) stop-start equipped cars. That’s why your Mazda CX-5 or similar model will say “Q-85” on the top. Panasonic has now exceeded this with the Q-100 which ranks as the highest capacity in that case size. This is almost twice the all round power of the aftermarket brands (i.e. 100 versus 55). Engineers at Panasonic & Toyota know that it is the combination of long-life, stable voltage, overall capacity and adequate starting power (Cold Cranking Amps, or CCA) that needs to be balanced. Most aftermarket batteries however focus on “CCA” for marketing reasons, to the detriment of these other critical requirements. So while Panasonic Batteries will always have ample CCA, as required for the car they fit into, they do not chase excessive CCA, knowing that the additives needed and design compromises made (more, and thinner plates per cell) are not a good trade-off. So choose the battery the Engineers from Japan specify more than any other, choose Panasonic. Whether it’s for your Toyota Hybrid, your Landcruiser or your Lexus, you can be sure it will be the best choice you can make.

The perfect replacement for a Q-85 battery, the Japanese Q100 is the same size but nearly 20% more powerful!

Ideal for modern vehicles fitted with ISS (Idle-Stop-Start), the Q100 comes in both polarities, just check which side the positive (+) terminal is located.

Panasonic have been the No.1 Factory-fitted Battery for leading brands such as Toyota, Mazda, Nissan and Subaru for many years. These batteries are built in Japan to the highest specification and under the most rigorous quality control, to keep your car operating reliably in hot conditions and heavy traffic. The Blue Case model is the Top Specification possible, and it exceeds the performance of the excellent standard fit grey case models.

Click on the Tech Tab above for sizes and full specifications.

  • Replaces Q-85 (nearly 20% more powerful in the same size!)
  • Model: NQ100/AS
  • Size: 230L  x 173 W x 225H (232 including posts)
  • Weight: 17.6 kg
  • Private Use Warranty: 2 Years
  • Commercial Use /Taxi warranty: 12/6 Months
  • Fitting Service: Standard-Fittings are normally free in-Store.

Replaces : Q85, 4032, SQ85D23LEFB, Q90

Enhanced Flooded Batteries (aka Improved Flooded Battery Technology) have been developed to meet the demands of Stop/Start vehicles. These batteries are able to survive and operate in a lower state of charge than regular lead acid batteries, and are suited to Stop/Start vehicles that don’t require the deep cycling of an AGM battery.

These batteries often have graphene on the negative plate to enhance the cranking performance and guard against plate growth. They support a higher number of engine starts than conventional batteries and survive better when left unused for extended periods of time.*

* ALL batteries, including EFB and AGM, don’t like being left in a partial state of charge. If you are going on holiday, or putting your vehicles in storage, we strongly recommend giving your battery a good charge beforehand and, if possible, attach a trickle charger!

Additional information

Weight 17.5 kg
Dimensions 23.2 × 17.3 × 22.5 cm


Warranty (Years)


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Hold Down Ledges

No Ledge