# Mazda CX-9 battery: what each engine takes, with prices

> The Mazda CX-9 has run through 2 generations between 2006 and 2025, and we cover every one of them with 3 compatible batteries: 65 to 72 Ah, 630 to 760 A of cold cranking, from 83.80 € with VAT.

## Which battery does a Mazda CX-9 take?

It depends on the engine and on whether it has Start-Stop. The table shows the recommended battery for each Mazda CX-9 engine with its price, VAT included; with your number plate or VIN we tell you the exact one in seconds.

## Recommended battery for each Mazda CX-9 engine

| Engine | Generation | Recommended battery | Price | URL |
|---|---|---|---|---|
| 2.5 T (TC2W) (170 kW / 231 CV) | Cx-9 II (2016–2025) | Varta N65 Dynamic EFB 65Ah | 110,80 | https://baterias.com/gb/car-batteries/mazda/cx-9-tc/25-t-tc2w-170-kw-231cv |
| 2.5 T AWD (TC4W) (170 kW / 231 CV) | Cx-9 II (2016–2025) | Varta N65 Dynamic EFB 65Ah | 110,80 | https://baterias.com/gb/car-batteries/mazda/cx-9-tc/25-t-awd-tc4w-170-kw-231cv |
| 3.5 (193 kW / 263 CV) | Cx-9 I (2006–2025) | Varta E23 Dynamic SLI 70Ah | 83,80 | https://baterias.com/gb/car-batteries/mazda/cx-9-tb/35-193-kw-263cv |
| 3.5 AWD (193 kW / 263 CV) | Cx-9 I (2006–2025) | Varta E23 Dynamic SLI 70Ah | 83,80 | https://baterias.com/gb/car-batteries/mazda/cx-9-tb/35-awd-193-kw-263cv |
| 3.7 (204 kW / 277 CV) | Cx-9 I (2006–2025) | Varta E23 Dynamic SLI 70Ah | 83,80 | https://baterias.com/gb/car-batteries/mazda/cx-9-tb/37-204-kw-277cv |
| 3.7 AWD (TB10A) (204 kW / 277 CV) | Cx-9 I (2006–2025) | Varta E23 Dynamic SLI 70Ah | 83,80 | https://baterias.com/gb/car-batteries/mazda/cx-9-tb/37-awd-tb10a-204-kw-277cv |

## Mazda CX-9 generations

Batteries change from one generation to the next. When two share a year, the body style — or simply the plate — settles it.

| Generation | Years | Body | Batteries | URL |
|---|---|---|---|---|
| Cx-9 II | 2016–2025 | berlina | 2 | /gb/car-batteries/mazda/cx-9-tc |
| Cx-9 I | 2006–2025 | berlina | 8 | /gb/car-batteries/mazda/cx-9-tb |

## Best-selling batteries for the Mazda CX-9

| Modelo | V | Ah | CCA (EN) | Tech | € VAT incl. | Stock | URL |
|---|---|---|---|---|---|---|---|
| Car battery Varta E23 Dynamic SLI 12V 70Ah 630A | 12 | 70 | 630 | PLOMO/ACIDO | 83,80 | ✓ | https://baterias.com/gb/battery-varta-e23-12v-70ah-630a |
| Start-Stop battery Varta N65 Dynamic EFB 12V 65Ah 650A EFB | 12 | 65 | 650 | EFB | 110,80 | ✓ | https://baterias.com/gb/battery-varta-n65-12v-65ah-650a |
| Start-Stop battery Varta N72 Dynamic EFB 12V 72Ah 760A EFB | 12 | 72 | 760 | EFB | 115,30 | ✓ | https://baterias.com/gb/battery-varta-n72-12v-72ah-760a |

## How to know which battery your Mazda CX-9 takes

The quickest and safest route is to enter your number plate: we identify the exact version, its engine and the battery fitted at the factory, with no room for error.

Prefer to do it manually? Check the date of first registration on your V5C and match it against the generation table above. When a year straddles two generations, the body style decides it: five-door hatch, estate or coupé.

As a final check, look at the battery currently fitted: the label shows capacity (Ah) and cold cranking amps (A). Always replace with equal or higher figures, never lower, and keep the same dimensions and terminal layout.

## Start-Stop: which battery your CX-9 needs

If your CX-9 has Start-Stop, the battery works far harder than usual — hundreds of restarts a day rather than a handful. That calls for EFB or AGM, depending on whether the system is basic or includes regenerative braking. A conventional battery there lasts months and can make the car switch Start-Stop off.

## Frequently asked questions

### Which battery does a Mazda CX-9 take?
It depends on the generation and engine: there are 3 compatible batteries in total, from 65 to 72 Ah and 630 to 760 A of cold cranking. The best sellers for this model are Car battery Varta E23 Dynamic SLI 12V 70Ah 630A, Start-Stop battery Varta N65 Dynamic EFB 12V 65Ah 650A EFB, Start-Stop battery Varta N72 Dynamic EFB 12V 72Ah 760A EFB. With your plate we tell you the exact one in seconds.

### How much does a Mazda CX-9 battery cost?
Between 83.80 € and 115.30 €, VAT included, depending on capacity and technology (EFB, lead-acid). Start-Stop versions (AGM or EFB) sit at the top of the range because they withstand many more cycles.

### How do I know which generation my CX-9 is?
By the registration year: Cx-9 II (2016-2025); Cx-9 I (2006-2025). If your year falls in the overlap between two generations, tell them apart by body type (hatchback, estate or coupé) or use the plate finder, which settles it with no doubt.

### How do I know the battery in my Mazda CX-9 is worn out?
Typical signs: sluggish cranking in the cold, headlights dimming on start-up, a battery warning on the dash or electronics resetting. A workshop can check resting voltage (below 12.4 V means discharged) and cranking capacity in a minute.

### Can I replace the battery of my Mazda CX-9 myself?
On most versions, yes: disconnect the negative terminal first, then the positive, release the clamp and fit the new battery in reverse order. On Start-Stop models or cars with battery management (BMS), register the new battery with a diagnostic tool so the ECU adjusts charging.

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Updated: 2026-11-06 · https://baterias.com/gb/car-batteries/mazda/cx-9