# Exide ETZ10-BS · Motorcycle battery 12V 9Ah 145A

![Exide ETZ10-BS · Motorcycle battery 12V 9Ah 145A](https://bateriasonline.es/261-home_default/exide-etz10-bs.jpg)

> Exide ETZ10-BS: 9 Ah motorcycle battery, 145 A (EN), 150×90×95 mm, positive terminal on the left, AGM. Equivalent to Exide AGM12-8.

**Category:** [Motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries) → [Exide](https://bateriasonline.es/en/exide-batteries)

- **Canonical URL**: https://bateriasonline.es/en/exide-etz10-bs
- **Language**: en
- **Brand**: Exide
- **Reference**: BOL-EXIDE-ETZ10-BS
- **EAN**: 3661024033824
- **MPN**: ETZ10-BS
- **Price**: 33,23 € (VAT incl., Spain)
- **Last updated**: 2026-11-09

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Exide |
| Range | EXIDE MOTORCYCLE AGM 12 V |
| Application | Motorcycles |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 9 Ah |
| Cold cranking amps (EN) | 145 A |
| Length | 150 mm |
| Width | 90 mm |
| Height | 95 mm |
| Weight | 3.4 kg |
| Polarity | Positive terminal on the left |
| Terminal type | M12 |
| JIS code | YTZ10 S |

## Quick description

The Exide ETZ10-BS is a motorcycle battery (AGM) with 12 V, 9 Ah and 145 A cold cranking current, measuring 150 × 90 × 95 mm, with the positive terminal on the left.

## Description

## Who the Exide ETZ10-BS is for

The Exide ETZ10-BS is made for motorcycles, scooters and quads. It is worth keeping the ETZ10-BS on a maintenance charger if the bike is laid up over winter.
At 9 Ah it covers mid-capacity motorcycles, large scooters and light quads. The ETZ10-BS belongs to the Exide EXIDE MOTORCYCLE AGM 12V range. [More Exide batteries](https://bateriasonline.es/en/exide-batteries)

## Exide ETZ10-BS codes and part numbers

This is how the Exide ETZ10-BS appears on the label and in parts catalogues:

| Commercial reference | ETZ10-BS |
|---|---|
| JIS code | YTZ10S |
| EAN | 3661024033824 |
| Terminal type | M12 |
| Not to be confused with | Exide ETZ14-BS (11 Ah, 205 A) |

## Equivalents and alternatives to the Exide ETZ10-BS

As the ETZ10-BS is an AGM battery, we only list other AGM batteries with its dimensions and polarity: neither an EFB nor a conventional battery can replace it.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Varta TZ10S (FA) | AGM | 9 Ah | 150 A | 150 × 87 × 93 |
| Varta TTZ10S-BS | AGM | 8 Ah | 150 A | 150 × 87 × 93 |
| Exide AGM12-8 | AGM | 8.6 Ah | 145 A | 150 × 90 × 95 |

## Exide ETZ10-BS vs AGM12-8, AGM12-10 and ETX12-BS

How the ETZ10-BS compares with Exide batteries of similar size and capacity:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Exide ETZ10-BS (this one) | 9 Ah | 145 A | 150 × 90 × 95 | left | 3.4 kg |
| Exide AGM12-8 | 8.6 Ah | 145 A | 150 × 90 × 95 | left | 3.4 kg |
| Exide AGM12-10 | 10 Ah | 150 A | 150 × 90 × 130 | left | 3.9 kg |
| Exide ETX12-BS | 10 Ah | 150 A | 150 × 90 × 130 | left | 3.9 kg |
| Exide AGM12-6 | 6 Ah | 90 A | 150 × 90 × 95 | left | 2.5 kg |

- Exide AGM12-8: 0.40 Ah less, the same cranking power, the same dimensions.
- Exide AGM12-10: 1 Ah more, 5 A more cranking power, a different height (130 mm instead of 95 mm). It only fits if there is room for 130 mm of height.
- Exide ETX12-BS: 1 Ah more, 5 A more cranking power, a different height (130 mm instead of 95 mm). It only fits if there is room for 130 mm of height.
- Exide AGM12-6: 3 Ah less, 55 A less cranking power, the same dimensions.

## What to look at before buying the ETZ10-BS

- The ETZ10-BS delivers 145 A cold cranking (EN standard); do not go below what your original battery states.
- With 9 Ah, the ETZ10-BS replaces an original battery of that capacity or slightly less.
- Polarity of the ETZ10-BS: positive terminal on the left (if yours has it on the other side, the cables will not reach).
- Length, width and height of the ETZ10-BS: 150 × 90 × 95 mm.

## Frequently asked questions about the Exide ETZ10-BS

### Exide ETZ10-BS or AGM12-8?

Compared with the ETZ10-BS, the Exide AGM12-8 has 0.40 Ah less. With the same cranking power (145 A), the ETZ10-BS and the AGM12-8 differ in capacity: the one with more Ah supports more load with the engine off. Both measure 150 × 90 × 95 mm, so they fit the same tray.

### Exide ETZ10-BS or AGM12-10/ETX12-BS: what changes?

Mainly the height: the ETZ10-BS is 95 mm tall and the Exide AGM12-10 130 mm, with the same length and width. In capacity and cranking power, the AGM12-10 offers 10 Ah and 150 A against 9 Ah and 145 A. The Exide ETX12-BS is 130 mm tall, with 10 Ah and 150 A. Before choosing between the ETZ10-BS and the AGM12-10, measure the free height of the battery compartment with the cover or bonnet closed.

### How much does the Exide ETZ10-BS weigh?

The ETZ10-BS weighs 3.4 kg. For reference, the Exide AGM12-8 (8.6 Ah) weighs 3.4 kg.

### Which battery is equivalent to the Exide ETZ10-BS?

Only other AGM batteries with its dimensions and polarity: Varta TZ10S (FA), Varta TTZ10S-BS and Exide AGM12-8. Neither an EFB nor a conventional battery replaces the ETZ10-BS.

### Which side is the positive terminal on the Exide ETZ10-BS?

The ETZ10-BS has the positive terminal on the left, looking at the battery from its long side with the terminals closest to you.

### Which charger does the Exide ETZ10-BS need?

A charger with an AGM mode that limits voltage to about 14.4-14.7 V. Never an old unregulated charger: overcharging dries out an AGM beyond repair.

## What it means that the ETZ10-BS is AGM

Inside, the ETZ10-BS has glass fibre separators (AGM) that hold the electrolyte. The ETZ10-BS needs a charger with an AGM mode that does not exceed 14.7 V.

## Other options if you are unsure about the ETZ10-BS

- [All motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [More Exide models](https://bateriasonline.es/en/exide-batteries)
- [Varta TZ10S (FA)](https://bateriasonline.es/en/varta-tz10s-fa-508909015) · 9 Ah, 150 A, 150×87×93 mm
- [Varta TTZ10S-BS](https://bateriasonline.es/en/varta-ttz10s-bs-508901015) · 8 Ah, 150 A, 150×87×93 mm

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