--- title: "Mazda CX-5 Battery: Group 35, 520 CCA" description: "How the Mazda CX-5 battery specification changed from 2013 to 2025, compared generation by generation. The Mazda CX-5 uses a BCI group 35 battery rated at 520 cold cranking amps. Fitment, replacement notes, and what to check before you buy." url: "https://whichcarparts.com/cars/mazda/cx-5/battery" updated: "2026-08-21" --- # Mazda CX-5 Battery Size (BCI Group and CCA) The specification is consistent across every generation we hold data for. ## Has the Mazda CX-5 battery specification changed by year? | Model years | Group size | CCA | Type | Location | | --- | --- | --- | --- | --- | | [2017-2025](https://whichcarparts.com/cars/mazda/cx-5/2017-2025/battery) | Group 35 | 520 CCA | FLOODED | Engine bay, driver side | | [2013-2016](https://whichcarparts.com/cars/mazda/cx-5/2013-2016/battery) | Group 35 | 520 CCA | FLOODED | Engine bay, driver side | ## Full specifications by generation The battery on a Mazda CX-5 is set by its generation, not its model year, so each generation has one page carrying the complete figures, part numbers and fitment notes for every year it covers. - [2017-2025 Mazda CX-5 Battery](https://whichcarparts.com/cars/mazda/cx-5/2017-2025/battery) - [2013-2016 Mazda CX-5 Battery](https://whichcarparts.com/cars/mazda/cx-5/2013-2016/battery) ## Mazda CX-5 battery: common questions ### What size battery does a Mazda CX-5 take? BCI group 35, rated at 520 cold cranking amps from the factory. Group size is a physical dimension and terminal-position standard, so a battery from a different group may not clamp down or may put the terminals on the wrong side. ### How many CCA does a Mazda CX-5 need? At least 520 CCA. Going higher is harmless and helps in cold climates; going lower is how a vehicle that started fine in October stops starting in January. ### Does the Mazda CX-5 need an AGM battery? The factory battery is a conventional flooded type. AGM is a valid upgrade, but never downgrade from AGM to flooded. ### Where is the battery on a Mazda CX-5? Engine bay, driver side. ### Does a Mazda CX-5 need the battery registered after replacement? Mazda's own spec (2019 US owner's manual) lists the gas-engine battery as 12V-60Ah/20HR or 65Ah/20HR, and the diesel as 65Ah or 80Ah/20HR, both correspond to a Group 35 case in the aftermarket. No AGM requirement; a higher-capacity Group 35 AGM is a common upgrade for cold climates. ## Sources - [Mazda USA official 2019 CX-5 owner's manual, engine/electrical specifications (battery Ah, spark plug part numbers)](https://www.mazdausa.com/static/manuals/2019/cx5/contents/10020101.html) - [Mazda USA official 2019 CX-5 owner's manual, coolant/lubricant classifications](https://www.mazdausa.com/static/manuals/2019/cx5/contents/10020100.html) - [Mazda USA official 2025 CX-5 owner's manual, scheduled maintenance intervals](https://www.mazdausa.com/static/manuals/2025/cx-5/contents/07020201.html) - [NHTSA recall 18V-426, side curtain air bags](https://api.nhtsa.gov/recalls/recallsByVehicle?make=mazda&model=cx-5&modelYear=2018) - [NHTSA recall 19V-497, PCM software stall](https://api.nhtsa.gov/recalls/recallsByVehicle?make=mazda&model=cx-5&modelYear=2018) - [NHTSA recall 21V-875, low-pressure fuel pump](https://api.nhtsa.gov/recalls/recallsByVehicle?make=mazda&model=cx-5&modelYear=2019) - [NHTSA TSB library, Service Alert SA-041/18 rocker arm inspection (cylinder deactivation)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10159203-0001.pdf) - [Mazda Connect Infotainment Settlement, official settlement site (class definition: CX-5 2016-2020)](https://www.mazdainfotainmentsettlement.com/) - [ClassAction.org, 2021 Mazda valve stem seal oil consumption proposed class action](https://www.classaction.org/news/five-2021-mazda-vehicle-models-burn-excessive-oil-due-to-defect-class-action-says) - [CarCostCanada, 2019 CX-5 Signature Diesel road test (168 hp / 290 lb-ft)](https://carcostcanada.com/blog/2019-mazda-cx-5-signature-diesel-road-test/) - [Wikipedia, Mazda CX-5 second generation engine history](https://en.wikipedia.org/wiki/Mazda_CX-5) - [Mazda parts forum, PY8W-14-302 turbo oil filter and 5.1 qt fill confirmation](https://mazdas247.com/forum/threads/oil-filter-2-5l-turbo.123872068/) ## Find your exact CX-5 - [2025](https://whichcarparts.com/cars/mazda/cx-5/2025) - [2024](https://whichcarparts.com/cars/mazda/cx-5/2024) - [2023](https://whichcarparts.com/cars/mazda/cx-5/2023) - [2022](https://whichcarparts.com/cars/mazda/cx-5/2022) - [2021](https://whichcarparts.com/cars/mazda/cx-5/2021) - [2020](https://whichcarparts.com/cars/mazda/cx-5/2020) - [2019](https://whichcarparts.com/cars/mazda/cx-5/2019) - [2018](https://whichcarparts.com/cars/mazda/cx-5/2018) - [2017](https://whichcarparts.com/cars/mazda/cx-5/2017) - [2016](https://whichcarparts.com/cars/mazda/cx-5/2016) - [2015](https://whichcarparts.com/cars/mazda/cx-5/2015) - [2014](https://whichcarparts.com/cars/mazda/cx-5/2014) - [2013](https://whichcarparts.com/cars/mazda/cx-5/2013) More Mazda CX-5 guides: - [Oil & filter](https://whichcarparts.com/cars/mazda/cx-5/oil) - [Tires & wheels](https://whichcarparts.com/cars/mazda/cx-5/tires) - [Wiper blades](https://whichcarparts.com/cars/mazda/cx-5/wipers) - [Air & cabin filters](https://whichcarparts.com/cars/mazda/cx-5/filters) - [Bulbs](https://whichcarparts.com/cars/mazda/cx-5/bulbs) - [Brakes](https://whichcarparts.com/cars/mazda/cx-5/brakes) - [Fluids](https://whichcarparts.com/cars/mazda/cx-5/fluids) - [Service schedule](https://whichcarparts.com/cars/mazda/cx-5/service-schedule) - [Problems & reliability](https://whichcarparts.com/cars/mazda/cx-5/common-problems) - [Oil light reset](https://whichcarparts.com/cars/mazda/cx-5/oil-reset) - [Key fob battery](https://whichcarparts.com/cars/mazda/cx-5/key-fob-battery) - [Specs](https://whichcarparts.com/cars/mazda/cx-5/specs) Specifications vary with engine option, production date, and market.