# Exide EZ850 · Boat battery 12V 100Ah 900A

![Exide EZ850 · Boat battery 12V 100Ah 900A](https://bateriasonline.es/283-home_default/exide-ez850.jpg)

> Exide EZ850: 100 Ah boat battery, 900 A (EN), 353×175×190 mm, positive terminal on the right, L5 case, EFB. Equivalent to Exide EP800.

**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-ez850
- **Language**: en
- **Brand**: Exide
- **Reference**: BOL-EXIDE-EZ850
- **EAN**: 3661024037495
- **MPN**: EZ850
- **Price**: 142,95 € (VAT incl., Spain)
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Exide |
| Range | EXIDE Marina & Leisure Dual EFB |
| Application | Boats |
| Technology | EFB |
| Voltage | 12 V |
| Capacity | 100 Ah |
| Cold cranking amps (EN) | 900 A |
| Length | 353 mm |
| Width | 175 mm |
| Height | 190 mm |
| Weight | 25.5 kg |
| Polarity | Positive terminal on the right |
| Energy | 850 Wh |
| Case size | L5 (353 × 175 × 190 mm) |

## Quick description

Exide EZ850: boat battery with 12 V, 100 Ah and 900 A cold cranking current, case size L5 (353 × 175 × 190 mm), with the positive terminal on the right.

## Description

## Where the Exide EZ850 fits

The Exide EZ850 is made for marine use. Fit the EZ850 securely on board and away from bilge water.
The EZ850 belongs to the Exide EXIDE Marina & Leisure Dual EFB range. [More Exide batteries](https://bateriasonline.es/en/exide-batteries)

## EFB technology in the EZ850

Inside, the EZ850 uses EFB technology, a reinforced version of the flooded battery. It is the choice for cars with basic Start-Stop.

## Exide EZ850 vs EP800 and EQ800: which one to choose?

What sets the EZ850 apart from its neighbours in the Exide range:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Exide EZ850 (this one) | 100 Ah | 900 A | 353 × 175 × 190 | right | 25.5 kg |
| Exide EP800 | 95 Ah | 850 A | 353 × 175 × 190 | right | 25.9 kg |
| Exide EQ800 | 95 Ah | 850 A | 353 × 175 × 190 | right | 26.1 kg |

- Exide EP800: 5 Ah less, 50 A less cranking power, the same L5 case, AGM technology.
- Exide EQ800: 5 Ah less, 50 A less cranking power, the same L5 case, AGM technology.

## Equivalents and alternatives to the Exide EZ850

As the EZ850 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) |
|---|---|---|---|---|
| Tudor TZ850 | EFB | 100 Ah | 900 A | 353 × 175 × 190 |
| Varta LED95 | EFB | 95 Ah | 850 A | 353 × 175 × 190 |
| Varta LA95 | AGM | 95 Ah | 850 A | 353 × 175 × 190 |
| Exide EP800 | AGM | 95 Ah | 850 A | 353 × 175 × 190 |
| Exide EQ800 | AGM | 95 Ah | 850 A | 353 × 175 × 190 |

## Part numbers and codes for the Exide EZ850

Shops, garages and catalogues identify the EZ850 with these codes:

| Commercial reference | EZ850 |
|---|---|
| EAN | 3661024037495 |
| Case size (EN) | L5 |
| Not to be confused with | Exide EZ650 (75 Ah, 750 A, positive terminal on the left), Exide EN850 (110 Ah, 750 A, positive terminal on the left), Exide EZ800 (95 Ah, 800 A, positive terminal on the left) |

## Check this before ordering the Exide EZ850

- Cold cranking: 900 A (EN), equal to or higher than the original.
- Your current battery should say about 100 Ah; a little more is also fine.
- Polarity of the EZ850: positive terminal on the right (if yours has it on the other side, the cables will not reach).
- Measure the space: the EZ850 takes up 353 × 175 × 190 mm (European case size L5).

## Frequently asked questions about the Exide EZ850

### EZ850 or EP800: which one suits me?

Compared with the EZ850, the Exide EP800 has 5 Ah less, 50 A less cranking power and AGM technology. The EZ850 cranks harder; the EP800 is only a good option if your original battery says 850 A or less. Both measure 353 × 175 × 190 mm, so they fit the same tray.

### How much does the Exide EZ850 weigh?

25.5 kg, with 100 Ah of capacity. For reference, the Exide EP800 (95 Ah) weighs 25.9 kg.

### Which battery is equivalent to the Exide EZ850?

In EFB or AGM, with its dimensions and polarity: Tudor TZ850, Varta LED95 and Varta LA95. A conventional battery does not replace the EZ850.

### What case size is the Exide EZ850?

Case size L5: 353 × 175 × 190 mm. The EZ850 fits any standard L5 battery tray such as the Tudor TZ850.

### Which side is the positive terminal on the Exide EZ850?

On the EZ850, 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 EZ850

- [Other marine and boat batteries](https://bateriasonline.es/en/marine-boat-batteries)
- [More Exide models](https://bateriasonline.es/en/exide-batteries)
- [Tudor TZ850](https://bateriasonline.es/en/tudor-tz850) · 100 Ah, 900 A, 353×175×190 mm
- [Varta LED95](https://bateriasonline.es/en/varta-led95) · 95 Ah, 850 A, 353×175×190 mm

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