
Mazda CX-5 battery model specifications, CX-5 battery capacity, the battery model of this car is Varta 80D26L. It is a 60AH battery. The Mazda CX-5 battery, also known as a storage battery, is a type of battery that works by converting chemical energy into electrical energy. Here is some additional information: Battery: A battery made of lead and its oxides, with sulfuric acid solution as the electrolyte. The normal service life varies from 1 to 8 years, depending largely on the condition of the vehicle. If the vehicle's alternator recharges normally and there is no leakage or grounding of electrical appliances, it can generally be used for more than 3 years. If you feel that the battery is not charging or the starter is weak, and the headlights are noticeably dimmer, the battery should be removed and charged with a charger for 12-24 hours. If it still doesn't work and the mileage has reached more than 50,000 KM, and the alternator has no faults, you should consider replacing the battery.

When I replaced the CX-5 battery two years ago, I specifically checked the information. This car originally comes with a Q85 model battery, mostly from Japanese brands like Yuasa or Unified. The specifications are 12V 60Ah with 550A cold cranking current. However, note that there might be differences depending on the year and model: domestic versions before 2017 generally use this model, but some versions after 2018 switched to smaller 45Ah batteries. I recommend not only checking the model and specifications when replacing the battery but also measuring the battery compartment size—once, a friend bought a higher-capacity battery but couldn’t close the cover. For cars with auto start-stop functionality, extra caution is needed; you must choose EFB or AGM batteries to handle frequent start-stop cycles. During maintenance, remember to ask the technician to check the alternator voltage—unstable voltage can shorten battery life.

With experience repairing over a hundred CX-5s, the original battery is usually Q85 specification, but the US version commonly uses size 35. When replacing a battery, focus on three key numbers: don't change the 12V voltage, ensure capacity doesn't drop below 55Ah (60Ah recommended), and maintain 550A cold cranking amps for reliable winter starts. Stop-start system owners must be cautious - regular batteries may fail within three months; always choose specialized models marked EFB/AGM. One customer reported steering wheel button failures, which traced back to voltage fluctuations caused by an aftermarket battery. It's recommended to check battery terminal voltage with a multimeter every six months - if it drops below 12.4V, prepare for replacement.

Located in the northern region, my 2016 CX-5 originally came with a Q85 battery, which suddenly failed last year at -20°C. The auto repair shop owner mentioned this specification is quite common, with alternatives available from brands like VARTA and Fengfan, priced about one-third cheaper than the OEM. However, three points should be noted: the casing dimensions must perfectly match the original vehicle base, the positive and negative terminal directions must not be reversed, and it's best to choose a brand offering a two-year warranty. Later, I upgraded to an enhanced version with a CCA rating of 600A, and haven't faced any cold-start issues since. As a side note, for those frequently making short trips, it's advisable to charge the battery monthly.


