# BMW Z4 Roadster batteries

> We stock 7 batteries that fit the BMW Z4 Roadster across its 3 generations (2002-2025), from 60 to 105 Ah, with cold cranking between 540 and 950 A and prices starting at 59.10 € including VAT.

## BMW Z4 Roadster 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 |
|---|---|---|---|---|
| Z4 Roadster III | 2018–2025 | cabrio | 8 | /gb/car-batteries/bmw/z4-roadster-g29 |
| Z4 Roadster II | 2009–2016 | cabrio | 18 | /gb/car-batteries/bmw/z4-roadster-e89 |
| Z4 Roadster I | 2002–2009 | cabrio | 19 | /gb/car-batteries/bmw/z4-roadster-e85 |

## Best-selling batteries for the BMW Z4 Roadster

| Modelo | V | Ah | CCA (EN) | Tech | € VAT incl. | Stock | URL |
|---|---|---|---|---|---|---|---|
| Car battery Varta E11 12V 74Ah 680A | 12 | 74 | 680 | PLOMO/ACIDO | 66,95 | ✓ | https://baterias.com/gb/battery-varta-e11-12v-74ah-680a |
| Car battery Varta E44 12V 77Ah 780A | 12 | 77 | 780 | PLOMO/ACIDO | 78,70 | ✓ | https://baterias.com/gb/battery-varta-e44-12v-77ah-780a |
| Start-Stop battery Varta A7 12V 70Ah 760A AGM | 12 | 70 | 760 | AGM | 118,15 | ✓ | https://baterias.com/gb/battery-varta-a7-agm-12v-70ah-760a |
| Car battery Varta D24 12V 60Ah 540A | 12 | 60 | 540 | PLOMO/ACIDO | 59,10 | ✓ | https://baterias.com/gb/battery-varta-d24-12v-60ah-540a |
| Start-Stop battery Varta A6 12V 80Ah 800A AGM | 12 | 80 | 800 | AGM | 146,65 | ✓ | https://baterias.com/gb/battery-varta-a6-agm-12v-80ah-800a |
| Start-Stop battery Varta A5 12V 95Ah 850A AGM | 12 | 95 | 850 | AGM | 169,95 | ✓ | https://baterias.com/gb/battery-varta-a5-agm-12v-95ah-850a |
| Start-Stop battery Varta A4 12V 105Ah 950A AGM | 12 | 105 | 950 | AGM | 172,14 | ✓ | https://baterias.com/gb/battery-varta-a4-agm-12v-105ah-950a |

## How to know which battery your BMW Z4 Roadster takes

Easiest of all is the number plate lookup: those few characters tell us the precise variant, the engine and the original battery, so you need not check anything else.

You can also work it out yourself: find the registration date in the vehicle documents and locate it in the table. If the year overlaps two generations, the body style — hatch, estate or coupé — tells them apart.

One last check: the label on the fitted battery gives you the reference capacity and cold cranking. Match or improve those numbers, and make sure the case size and polarity suit your battery tray.

## Start-Stop: which battery your Z4 Roadster needs

If your Z4 Roadster 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 BMW Z4 Roadster take?
It depends on the generation and engine: there are 7 compatible batteries in total, from 60 to 105 Ah and 540 to 950 A of cold cranking. The best sellers for this model are Car battery Varta E11 12V 74Ah 680A, Car battery Varta E44 12V 77Ah 780A, Start-Stop battery Varta A7 12V 70Ah 760A AGM. With your plate we tell you the exact one in seconds.

### How much does a BMW Z4 Roadster battery cost?
Between 59.10 € and 172.14 €, VAT included, depending on capacity and technology (AGM, 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 Z4 Roadster is?
By the registration year: Z4 Roadster III (2018-2025); Z4 Roadster II (2009-2016); Z4 Roadster I (2002-2009). 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.

### Can I fit a battery with more amps?
Yes, as long as the dimensions fit the tray and the terminal layout matches. More capacity (Ah) and more cold cranking (A) do not harm the vehicle: the alternator charges it the same and you gain margin in winter. What you must never do is go below the original figures.

### How long does a BMW Z4 Roadster battery last?
Between 4 and 6 years in normal use. Start-Stop batteries (AGM/EFB) tend to last slightly less in city driving because of the number of starts, but they are designed for that cycling. If the car sits unused for weeks or you notice slow cranking in the cold, get it checked.

---
Updated: 2026-08-04 · https://baterias.com/gb/car-batteries/bmw/z4-roadster