# Exide ER450 · Boat battery 12V 95Ah 720A

![Exide ER450 · Boat battery 12V 95Ah 720A](https://bateriasonline.es/285-home_default/exide-er450.jpg)

> Exide ER450: 95 Ah boat battery, 720 A (EN), 306×173×222 mm, positive terminal on the left, D31 case. Equivalent to Exide EZ800.

**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-er450
- **Language**: en
- **Brand**: Exide
- **Reference**: BOL-EXIDE-ER450
- **EAN**: 3661024035996
- **MPN**: ER450
- **Price**: 87,38 € (VAT incl., Spain)
- **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 | 95 Ah |
| Cold cranking amps (EN) | 720 A |
| Length | 306 mm |
| Width | 173 mm |
| Height | 222 mm |
| Weight | 21.7 kg |
| Polarity | Positive terminal on the left |
| Energy | 450 Wh |
| Case size | D31 (306 × 173 × 225 mm) |

## Quick description

The Exide ER450 is a boat battery with 12 V, 95 Ah and 720 A cold cranking current, case size D31 (306 × 173 × 222 mm), with the positive terminal on the left.

## Description

## Who the Exide ER450 is for

The Exide ER450 is a battery for boats: engine starting or on-board service, depending on its design, with resistance to damp and hull vibration. Fit the ER450 securely on board and away from bilge water.
The ER450 belongs to the Exide EXIDE MARINA DUAL ER range. [More Exide batteries](https://bateriasonline.es/en/exide-batteries)

## Lead-acid technology in the ER450

The ER450 is a conventional lead-acid battery, with plates immersed in liquid electrolyte. In cars without energy management, the ER450 needs no special registration: just connect it.

## Exide ER450 vs EZ800 and ER350

Torn between the ER450 and another similar Exide? This is what changes:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Exide ER450 (this one) | 95 Ah | 720 A | 306 × 173 × 222 | left | 21.7 kg |
| Exide EZ800 | 95 Ah | 800 A | 306 × 173 × 222 | left | 21.8 kg |
| Exide ER350 | 80 Ah | 570 A | 270 × 173 × 222 | left | 17.8 kg |

- Exide EZ800: the same capacity, 80 A more cranking power, the same D31 case, EFB technology.
- Exide ER350: 15 Ah less, 150 A less cranking power, a different case (270 × 173 × 222 mm).

## Equivalents and alternatives to the Exide ER450

Batteries that fit the ER450's tray with the same polarity; besides other conventional batteries, an EFB or AGM of this size is a valid upgrade for the ER450.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Tudor TZ800 | EFB | 95 Ah | 800 A | 306 × 173 × 222 |
| Exide EZ800 | EFB | 95 Ah | 800 A | 306 × 173 × 222 |

## Part numbers and codes for the Exide ER450

Look for any of these ER450 codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | ER450 |
|---|---|
| EAN | 3661024035996 |
| Case size (EN) | D31 |
| Not to be confused with | Exide EB450 (45 Ah, 330 A, positive terminal on the right), Exide ES450 (40 Ah, 280 A, positive terminal on the right), Exide EP450 (50 Ah, 750 A) |

## What to look at before buying the ER450

- Cold cranking: 720 A (EN), equal to or higher than the original.
- With 95 Ah, the ER450 replaces an original battery of that capacity or slightly less.
- With the terminals facing you, the positive terminal of the ER450 is on the left.
- Measure the space: the ER450 takes up 306 × 173 × 222 mm (European case size D31).

## Frequently asked questions about the Exide ER450

### ER450 or EZ800: which one suits me?

Compared with the ER450, the Exide EZ800 has 80 A more cranking power and EFB technology. If your current battery says 800 A or more, choose the EZ800; if it says 720 A or less, the ER450 is enough. Both measure 306 × 173 × 222 mm, so they fit the same tray.

### How much does the Exide ER450 weigh?

21.7 kg, with 95 Ah of capacity. For reference, the Exide EZ800 (95 Ah) weighs 21.8 kg.

### Which battery is equivalent to the Exide ER450?

With the same dimensions, polarity and similar capacity you have the Tudor TZ800 and Exide EZ800. As the ER450 is a conventional battery, an EFB or AGM of the same size also works.

### What case size is the Exide ER450?

Case size D31: 306 × 173 × 222 mm. The ER450 fits any standard D31 battery tray such as the Tudor TZ800.

### Which side is the positive terminal on the Exide ER450?

On the ER450, the positive terminal is on the left with the terminals facing you: compare it with your current battery, because with reversed polarity the cables will not reach.

### Which charger does the Exide ER450 need?

An automatic lead-acid charger with cut-off or maintenance mode, rated at 10 to 20% of its capacity in amps. If it is a vented type, check the electrolyte level and top up only with distilled water.

## More batteries to compare with the ER450

- [Other marine and boat batteries](https://bateriasonline.es/en/marine-boat-batteries)
- [The whole Exide range](https://bateriasonline.es/en/exide-batteries)
- [Tudor TZ800](https://bateriasonline.es/en/tudor-tz800) · 95 Ah, 800 A, 306×173×222 mm
- [Exide EZ800](https://bateriasonline.es/en/exide-ez800) · 95 Ah, 800 A, 306×173×222 mm

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