# Mercedes-Benz SL battery: what each engine takes, with prices

> The Mercedes-Benz SL has run through 3 generations between 1990 and 2020, and we cover every one of them with 7 compatible batteries: 13 to 100 Ah, 200 to 850 A of cold cranking, from 70.20 € with VAT.

## Which battery does a Mercedes-Benz SL take?

It depends on the engine. Mercedes-Benz SL owners mostly buy Varta AUX1 35Ah (147.50 €), Varta G3 95Ah (95.20 €) and Varta A7 70Ah (134.95 €) from us. The table shows the recommended battery for each engine with its price (VAT included) and a link to its page; with your number plate or VIN we tell you the exact one in seconds.

## Recommended battery for each Mercedes-Benz SL engine

| Engine | Generation | Recommended battery | Price | URL |
|---|---|---|---|---|
| 350 (230.467) (180 kW / 245 CV) | Sl II (2001–2012) | Varta A7 70Ah | 134,95 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r230/350-230467-180-kw-245cv |
| 500 (230.475) (225 kW / 306 CV) | Sl II (2001–2012) | Varta A7 70Ah | 134,95 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r230/500-230475-225-kw-306cv |
| 55 AMG Kompressor (230.474) (368 kW / 500 CV) | Sl II (2001–2012) | Varta A7 70Ah | 134,95 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r230/55-amg-kompressor-230474-368-kw-500cv |
| 300 SL-24 (129.061) (170 kW / 231 CV) | Sl I (1990–2004) | Varta H3 100Ah | 109,90 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r129/300-sl-24-129061-170-kw-231cv |
| 500 SL (129.066) (240 kW / 326 CV) | Sl I (1990–2004) | Varta H3 100Ah | 109,90 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r129/500-sl-129066-240-kw-326cv |
| 350 (231.457) (225 kW / 306 CV) | Sl III (2011–2020) | Varta A5 95Ah | 179,99 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r231/350-231457-225-kw-306cv |
| 400 (231.465) (245 kW / 333 CV) | Sl III (2011–2020) | Varta A5 95Ah | 179,99 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r231/400-231465-245-kw-333cv |
| 400 (231.466) (270 kW / 367 CV) | Sl III (2011–2020) | Varta A5 95Ah | 179,99 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r231/400-231466-270-kw-367cv |
| 500 (231.473) (320 kW / 435 CV) | Sl III (2011–2020) | Varta A5 95Ah | 179,99 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r231/500-231473-320-kw-435cv |
| 500 (231.473) (335 kW / 455 CV) | Sl III (2011–2020) | Varta A5 95Ah | 179,99 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r231/500-231473-335-kw-455cv |
| 63 AMG (231.474) (395 kW / 537 CV) | Sl III (2011–2020) | Varta A5 95Ah | 179,99 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r231/63-amg-231474-395-kw-537cv |
| 63 AMG (231.474) (415 kW / 564 CV) | Sl III (2011–2020) | Varta A5 95Ah | 179,99 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r231/63-amg-231474-415-kw-564cv |
| 63 AMG (231.474) (420 kW / 571 CV) | Sl III (2011–2020) | Varta A5 95Ah | 179,99 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r231/63-amg-231474-420-kw-571cv |
| 63 AMG (231.474) (430 kW / 585 CV) | Sl III (2011–2020) | Varta A5 95Ah | 179,99 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r231/63-amg-231474-430-kw-585cv |
| 65 AMG (231.479) (463 kW / 630 CV) | Sl III (2011–2020) | Varta A5 95Ah | 179,99 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r231/65-amg-231479-463-kw-630cv |
| 280 (230.454) (170 kW / 231 CV) | Sl II (2001–2012) | Varta A7 70Ah | 134,95 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r230/280-230454-170-kw-231cv |
| 300 (230.454) (170 kW / 231 CV) | Sl II (2001–2012) | Varta A7 70Ah | 134,95 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r230/300-230454-170-kw-231cv |
| 350 (230.456) (200 kW / 272 CV) | Sl II (2001–2012) | Varta A7 70Ah | 134,95 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r230/350-230456-200-kw-272cv |
| 350 (230.458) (232 kW / 316 CV) | Sl II (2001–2012) | Varta A7 70Ah | 134,95 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r230/350-230458-232-kw-316cv |
| 500 (230.471) (285 kW / 388 CV) | Sl II (2001–2012) | Varta A7 70Ah | 134,95 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r230/500-230471-285-kw-388cv |
| 55 AMG (230.472) (380 kW / 517 CV) | Sl II (2001–2012) | Varta A7 70Ah | 134,95 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r230/55-amg-230472-380-kw-517cv |
| 55 AMG (230.474) (350 kW / 476 CV) | Sl II (2001–2012) | Varta A7 70Ah | 134,95 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r230/55-amg-230474-350-kw-476cv |
| 600 (230.476) (368 kW / 500 CV) | Sl II (2001–2012) | Varta A7 70Ah | 134,95 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r230/600-230476-368-kw-500cv |
| 600 (230.477) (380 kW / 517 CV) | Sl II (2001–2012) | Varta A7 70Ah | 134,95 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r230/600-230477-380-kw-517cv |
| 63 AMG (230.470) (386 kW / 525 CV) | Sl II (2001–2012) | Varta A5 95Ah | 179,99 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r230/63-amg-230470-386-kw-525cv |
| 65 AMG (230.479) (450 kW / 612 CV) | Sl II (2001–2012) | Varta A5 95Ah | 179,99 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r230/65-amg-230479-450-kw-612cv |
| 65 AMG Black Series (230.479) (493 kW / 670 CV) | Sl II (2001–2012) | Varta A7 70Ah | 134,95 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r230/65-amg-black-series-230479-493-kw-670cv |
| 280 (129.058) (142 kW / 193 CV) | Sl I (1990–2004) | Varta H3 100Ah | 109,90 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r129/280-129058-142-kw-193cv |
| 280 (129.059) (150 kW / 204 CV) | Sl I (1990–2004) | Varta E44 77Ah | 85,40 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r129/280-129059-150-kw-204cv |
| 300 SL (129.060) (140 kW / 190 CV) | Sl I (1990–2004) | Varta H3 100Ah | 109,90 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r129/300-sl-129060-140-kw-190cv |
| 320 (129.063) (170 kW / 231 CV) | Sl I (1990–2004) | Varta H3 100Ah | 109,90 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r129/320-129063-170-kw-231cv |
| 320 (129.064) (165 kW / 224 CV) | Sl I (1990–2004) | Varta H3 100Ah | 109,90 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r129/320-129064-165-kw-224cv |
| 500 (129.067) (235 kW / 320 CV) | Sl I (1990–2004) | Varta H3 100Ah | 109,90 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r129/500-129067-235-kw-320cv |
| 500 (129.068) (225 kW / 306 CV) | Sl I (1990–2004) | Varta H3 100Ah | 109,90 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r129/500-129068-225-kw-306cv |
| 55 AMG (260 kW / 354 CV) | Sl I (1990–2004) | Varta H3 100Ah | 109,90 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r129/55-amg-260-kw-354cv |
| 60 AMG (129.067) (280 kW / 381 CV) | Sl I (1990–2004) | Varta H3 100Ah | 109,90 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r129/60-amg-129067-280-kw-381cv |
| 600 (129.076) (290 kW / 394 CV) | Sl I (1990–2004) | Varta H3 100Ah | 109,90 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r129/600-129076-290-kw-394cv |
| 600 SL (129.076) (300 kW / 408 CV) | Sl I (1990–2004) | Varta H3 100Ah | 109,90 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r129/600-sl-129076-300-kw-408cv |
| SL 73 AMG (129.076) (386 kW / 525 CV) | Sl I (1990–2004) | Varta H3 100Ah | 109,90 | https://baterias.com/gb/car-batteries/mercedes-benz/sl-r129/sl-73-amg-129076-386-kw-525cv |

## 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 E44 12V 77Ah 780A | 12 | 77 | 780 | PLOMO/ACIDO | 85,40 | ✓ | https://baterias.com/gb/battery-varta-e44-12v-77ah-780a |
| Start-Stop battery Varta A7 12V 70Ah 760A AGM | 12 | 70 | 760 | AGM | 134,95 | ✓ | https://baterias.com/gb/battery-varta-a7-agm-12v-70ah-760a |
| Car battery Varta H3 12V 100Ah 830A | 12 | 100 | 830 | PLOMO/ACIDO | 109,90 | ✓ | https://baterias.com/gb/battery-varta-h3-12v-100ah-830a |
| Car battery Varta G3 12V 95Ah 800A | 12 | 95 | 800 | PLOMO/ACIDO | 95,20 | ✓ | https://baterias.com/gb/battery-varta-g3-12v-95ah-800a |
| Start-Stop battery Varta A5 12V 95Ah 850A AGM | 12 | 95 | 850 | AGM | 179,99 | ✓ | https://baterias.com/gb/battery-varta-a5-agm-12v-95ah-850a |
| Car battery Varta AUX14 12V 13Ah 200A | 12 | 13 | 200 | AGM | 70,20 | ✓ | https://baterias.com/gb/battery-varta-aux14-12v-13ah-200a |
| Car battery Varta AUX1 12V 35Ah 520A | 12 | 35 | 520 | PLOMO/ACIDO | 147,50 | ✓ | 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 engine. Mercedes-Benz SL owners mostly buy Varta AUX1 35Ah (147.50 €), Varta G3 95Ah (95.20 €) and Varta A7 70Ah (134.95 €) from us. The table shows the recommended battery for each engine with its price (VAT included) and a link to its page; with your number plate or VIN we tell you the exact one in seconds.

### How much does a Mercedes-Benz SL battery cost?
Between 70.20 € and 179.99 €, 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: 2026-10-30 · https://baterias.com/gb/car-batteries/mercedes-benz/sl