# Exide ER850 · Boat battery 12V 180Ah 1,000A

![Exide ER850 · Boat battery 12V 180Ah 1,000A](https://bateriasonline.es/368-home_default/exide-er850.jpg)

> Exide ER850: 180 Ah boat battery, 1,000 A (EN), 513×223×223 mm. Equivalent to Exide EN1100 and Exide ET1300. Price on request: ask for a free quote.

**Category:** [Marine and boat batteries](https://bateriasonline.es/en/marine-boat-batteries) → [Exide](https://bateriasonline.es/en/exide-batteries)

- **Canonical URL**: https://bateriasonline.es/en/exide-er850
- **Language**: en
- **Brand**: Exide
- **Reference**: BOL-EXIDE-ER850
- **EAN**: 3661024037440
- **MPN**: ER850
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Exide |
| Range | EXIDE MARINA DUAL ER |
| Application | Boats |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 180 Ah |
| Cold cranking amps (EN) | 1000 A |
| Length | 513 mm |
| Width | 223 mm |
| Height | 223 mm |
| Weight | 46.1 kg |
| Terminal layout | 3 |
| Energy | 850 Wh |

## Quick description

Exide ER850: boat battery with 12 V, 180 Ah and 1,000 A cold cranking current, measuring 513 × 223 × 223 mm.

## Description

## Who the Exide ER850 is for

The Exide ER850 is a battery for boats: engine starting or on-board service, depending on its design, with resistance to damp and hull vibration. Fit the ER850 securely on board and away from bilge water.
The ER850 belongs to the Exide EXIDE MARINA DUAL ER range. [The full range of Exide batteries](https://bateriasonline.es/en/exide-batteries)

## What it means that the ER850 is lead-acid

The ER850 is a conventional lead-acid battery, with plates immersed in liquid electrolyte. In cars without energy management, the ER850 needs no special registration: just connect it.

## Exide ER850 vs ET1300 and EP1500: which one to choose?

What sets the ER850 apart from its neighbours in the Exide range:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Weight |
|---|---|---|---|---|
| Exide ER850 (this one) | 180 Ah | 1,000 A | 513 × 223 × 223 | 46.1 kg |
| Exide ET1300 | 180 Ah | 900 A | 513 × 223 × 223 | 49.7 kg |
| Exide EP1500 | 180 Ah | 900 A | 513 × 223 × 223 | 50 kg |

- Exide ET1300: the same capacity, 100 A less cranking power, the same dimensions.
- Exide EP1500: the same capacity, 100 A less cranking power, the same dimensions, AGM technology.

## Equivalents and alternatives to the Exide ER850

Batteries that fit the ER850's tray with the same polarity; besides other conventional batteries, an EFB or AGM of this size is a valid upgrade for the ER850.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Varta LFD180 | Lead-acid | 180 Ah | 1,000 A | 513 × 223 × 223 |
| Varta LED190 | EFB | 190 Ah | 1,050 A | 513 × 223 × 223 |
| Varta LA170 | AGM | 170 Ah | 1,000 A | 513 × 223 × 223 |
| Exide EN1100 | Lead-acid | 180 Ah | 1,000 A | 513 × 223 × 223 |
| Exide ET1300 | Lead-acid | 180 Ah | 900 A | 513 × 223 × 223 |
| Exide EP1500 | AGM | 180 Ah | 900 A | 513 × 223 × 223 |

## Part numbers and codes for the Exide ER850

Look for any of these ER850 codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | ER850 |
|---|---|
| EAN | 3661024037440 |
| Not to be confused with | Exide ER350 (80 Ah, 570 A, positive terminal on the left), Exide EZ850 (100 Ah, 900 A, positive terminal on the right), Exide ER450 (95 Ah, 720 A, positive terminal on the left) |

## What to look at before buying the ER850

- Check the EN amps on your battery: if it says 1,000 A or less, the ER850 covers your engine.
- Your current battery should say about 180 Ah; a little more is also fine.
- The ER850 needs 513 × 223 × 223 mm of space: measure it with the hold-down clamp in place.

## Frequently asked questions about the Exide ER850

### ER850 or ET1300: which one suits me?

Compared with the ER850, the Exide ET1300 has 100 A less cranking power. The ER850 cranks harder; the ET1300 is only a good option if your original battery says 900 A or less. Both measure 513 × 223 × 223 mm, so they fit the same tray.

### How much does the Exide ER850 weigh?

46.1 kg, with 180 Ah of capacity. For reference, the Exide ET1300 (180 Ah) weighs 49.7 kg.

### Which battery is equivalent to the Exide ER850?

With the same dimensions, polarity and similar capacity you have the Varta LFD180, Varta LED190 and Varta LA170. As the ER850 is a conventional battery, an EFB or AGM of the same size also works.

### How do I look after the boat battery in winter?

Leave it 100% charged, disconnected or on a marine maintenance charger. A battery that spends the winter half-discharged loses capacity permanently.

## More batteries to compare with the ER850

- [More marine and boat batteries](https://bateriasonline.es/en/marine-boat-batteries)
- [The whole Exide range](https://bateriasonline.es/en/exide-batteries)
- [Varta LFD180](https://bateriasonline.es/en/varta-lfd180) · 180 Ah, 1,000 A, 513×223×223 mm
- [Varta LED190](https://bateriasonline.es/en/varta-led190) · 190 Ah, 1,050 A, 513×223×223 mm

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