# MERCEDES-BENZ Sl batteries

> The MERCEDES-BENZ Sl has run through 3 generations between 1990 and 2020, and we cover every one of them with 11 compatible batteries: 13 to 100 Ah, 200 to 850 A of cold cranking, from 59.10 € with VAT.

## MERCEDES-BENZ Sl generations

Each generation takes a different battery. If you are torn between two, check the body style or use the number plate lookup.

| Generation | Years | Body | Batteries | URL |
|---|---|---|---|---|
| Sl III | 2011–2020 | berlina | 20 | /gb/car-batteries/mercedes-benz/sl-r231 |
| Sl II | 2001–2012 | berlina | 33 | /gb/car-batteries/mercedes-benz/sl-r230 |
| Sl I | 1990–2004 | berlina | 41 | /gb/car-batteries/mercedes-benz/sl-r129 |

## Best-selling batteries for the MERCEDES-BENZ Sl

| Modelo | V | Ah | CCA (EN) | Tech | € VAT incl. | Stock | URL |
|---|---|---|---|---|---|---|---|
| Car battery Varta E11 12V 74Ah 680A | 12 | 74 | 680 | PLOMO/ACIDO | 72,58 | ✓ | https://baterias.com/gb/battery-varta-e11-12v-74ah-680a |
| Car battery Varta E44 12V 77Ah 780A | 12 | 77 | 780 | PLOMO/ACIDO | 84,70 | ✓ | 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 |
| Car battery Varta H3 12V 100Ah 830A | 12 | 100 | 830 | PLOMO/ACIDO | 109,23 | ✓ | https://baterias.com/gb/battery-varta-h3-12v-100ah-830a |
| 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 |
| Car battery Varta G3 12V 95Ah 800A | 12 | 95 | 800 | PLOMO/ACIDO | 94,55 | ✓ | https://baterias.com/gb/battery-varta-g3-12v-95ah-800a |
| Car battery Varta D15 12V 63Ah 610A | 12 | 63 | 610 | PLOMO/ACIDO | 81,19 | — | https://baterias.com/gb/battery-varta-d15-12v-63ah-610a |
| 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 |
| Car battery Varta AUX14 12V 13Ah 200A | 12 | 13 | 200 | AGM | 69,54 | ✓ | https://baterias.com/gb/battery-varta-aux14-12v-13ah-200a |
| Car battery Varta AUX1 12V 35Ah 520A | 12 | 35 | 520 | PLOMO/ACIDO | 146,80 | — | https://baterias.com/gb/battery-varta-aux1-12v-35ah-520a |

## How to know which battery your MERCEDES-BENZ Sl 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.

Another route is the vehicle paperwork: the registration date places you in one of the generations listed. In the overlap years, body style is the detail that separates them.

Before ordering, inspect your existing battery: its label lists the Ah and the starting amps. The replacement must match or beat both — never fall short — and share the same size and positive terminal side.

## Start-Stop: which battery your Sl needs

Start-Stop on the modern Sl changes the rules: the battery takes hundreds of micro-cycles daily. The correct answer is EFB for basic systems and AGM where braking energy is recovered. Dropping to a conventional battery is the most expensive mistake you can make here.

## Frequently asked questions

### Which battery does a MERCEDES-BENZ Sl take?
It depends on the generation and engine: there are 11 compatible batteries in total, from 13 to 100 Ah and 200 to 850 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 MERCEDES-BENZ Sl battery cost?
Between 59.10 € and 169.95 €, VAT included, depending on capacity and technology (lead-acid, AGM). 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 Sl is?
By the registration year: Sl III (2011-2020); Sl II (2001-2012); Sl I (1990-2004). 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 MERCEDES-BENZ Sl 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.

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Updated: 2026-08-26 · https://baterias.com/gb/car-batteries/mercedes-benz/sl