# Varta N85 · Start-Stop battery 12V 85Ah 800A

![Varta N85 · Start-Stop battery 12V 85Ah 800A](https://bateriasonline.es/1880-home_default/varta-n85.jpg)

> Varta N85 (ETN 585501080): 85 Ah Start-Stop battery, 800 A (EN), 306×173×225 mm, positive terminal on the right.

**Category:** [Start-Stop batteries (AGM and EFB)](https://bateriasonline.es/en/start-stop-batteries-agm-efb) → [Varta](https://bateriasonline.es/en/varta-batteries)

- **Canonical URL**: https://bateriasonline.es/en/varta-n85
- **Language**: en
- **Brand**: Varta
- **Reference**: BOL-VARTA-N85
- **EAN**: 4016987167298
- **MPN**: N85
- **Price**: 124,43 € (VAT incl., Spain)
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Varta |
| Range | VARTA Dynamic EFB |
| Application | Start-Stop cars |
| Technology | EFB |
| Voltage | 12 V |
| Capacity | 85 Ah |
| Cold cranking amps (EN) | 800 A |
| Length | 306 mm |
| Width | 173 mm |
| Height | 225 mm |
| Weight | 21.36 kg |
| Polarity | Positive terminal on the right |
| Case size | D31 (306 × 173 × 225 mm) |
| ETN code | 585501080 |

## Quick description

The Varta N85 (ETN 585 501 080, also written N 85 or 585501080) is a Start-Stop battery (EFB) with 12 V, 85 Ah and 800 A cold cranking current, case size D31 (306 × 173 × 225 mm), with the positive terminal on the right.

## Description

## The Varta N85 at a glance

The Varta N85 is designed for automatic engine stop and regenerative braking. The N85 is designed for cars that switch the engine off at every stop and restart it dozens of times per trip.
At 85 Ah it moves into large diesels, SUVs, vans and cars with heavy electrical equipment. In the Varta catalogue, the N85 belongs to the Dynamic EFB line. [See all Varta batteries](https://bateriasonline.es/en/varta-batteries)

## Varta N85 vs N80 and N72: which one to choose?

Torn between the N85 and another similar Varta? This is what changes:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Varta N85 (this one) | 85 Ah | 800 A | 306 × 173 × 225 | right | 21.36 kg |
| Varta N80 | 80 Ah | 800 A | 315 × 175 × 190 | right | 21.13 kg |
| Varta N72 | 72 Ah | 760 A | 260 × 173 × 225 | right | 18.82 kg |

- Varta N80: 5 Ah less, the same cranking power, a different case (315 × 175 × 190 mm).
- Varta N72: 13 Ah less, 40 A less cranking power, a different case (260 × 173 × 225 mm).

## Part numbers and codes for the Varta N85

This is how the Varta N85 appears on the label and in parts catalogues:

| Commercial reference | N85 (N 85) |
|---|---|
| ETN code | 585501080 (also 585 501 080) |
| EAN | 4016987167298 |
| Case size (EN) | D31 |
| UK code | 335EFB |
| Base hold-down | B01 |
| Also known as | Varta N 85 · Varta 585501080 · Varta 585 501 080 |
| Not to be confused with | Varta N65 (65 Ah, 650 A), Varta N80 (80 Ah, 800 A), Varta N95 (95 Ah, 850 A) |

## Equivalents and alternatives to the Varta N85

As the N85 is an EFB, only EFB or AGM batteries of the same size and polarity are listed: you can step up to AGM, but not down to a conventional battery.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Kronobat PE-85-EFB | EFB | 85 Ah | 800 A | 306 × 173 × 225 |

## Check this before ordering the Varta N85

- Length, width and height of the N85: 306 × 173 × 225 mm (European case size D31).
- Polarity of the N85: positive terminal on the right (if yours has it on the other side, the cables will not reach).
- Capacity of the N85: 85 Ah; the same as your current battery or slightly more is fine.
- Check the EN amps on your battery: if it says 800 A or less, the N85 covers your engine.
- The N85 is an EFB: it suits cars that had an EFB or a conventional battery. If yours had an AGM, fit another AGM.

## What it means that the N85 is EFB

Inside, the N85 uses EFB technology, a reinforced version of the flooded battery. The N85 works with normal chargers that have a lead-acid or EFB mode.

## Frequently asked questions about the Varta N85

### N85 or N80: which one suits me?

Compared with the N85, the Varta N80 has 5 Ah less. With the same cranking power (800 A), the N85 and the N80 differ in capacity: the one with more Ah supports more load with the engine off. Mind the space: the N80 measures 315 × 175 × 190 mm.

### What does the code 585 501 080 on the Varta N85 mean?

It is its ETN (European Type Number), also written 585501080. The first three digits (585) encode voltage and capacity: 12 V and 85 Ah (5xx = under 100 Ah, 6xx = 100 to 199 Ah, 7xx = 200 Ah or more). The middle group (501) identifies the specific model within that capacity, and the last three digits (080) multiplied by 10 give the cold cranking current: 800 A.

### Can the Varta N85 be used in a car with Start-Stop?

Yes, the N85 is an EFB: it suits Start-Stop without brake energy recovery, or cars that already had an EFB. If your car left the factory with an AGM, fit another AGM.

### How much does the Varta N85 weigh?

21.36 kg, with 85 Ah of capacity. For reference, the Varta N80 (80 Ah) weighs 21.13 kg.

### Which battery is equivalent to the Varta N85?

In EFB or AGM, with its dimensions and polarity: Kronobat PE-85-EFB. A conventional battery does not replace the N85.

### What case size is the Varta N85?

Case size D31: 306 × 173 × 225 mm. The N85 fits any standard D31 battery tray such as the Kronobat PE-85-EFB.

### Which side is the positive terminal on the Varta N85?

On the N85, the positive terminal is on the right with the terminals facing you: compare it with your current battery, because with reversed polarity the cables will not reach.

## Keep comparing: alternatives to the N85

- [Other start-Stop batteries (AGM and EFB)](https://bateriasonline.es/en/start-stop-batteries-agm-efb)
- [Full Varta catalogue](https://bateriasonline.es/en/varta-batteries)
- [Kronobat PE-85-EFB](https://bateriasonline.es/en/kronobat-pe-85-efb) · 85 Ah, 800 A, 306×173×225 mm

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*bateriasonline.es — Batteries and accessories · 2026-11-10*