# Varta TTZ10S-BS · Motorcycle battery 12V 8Ah 150A

![Varta TTZ10S-BS · Motorcycle battery 12V 8Ah 150A](https://bateriasonline.es/1214-home_default/varta-ttz10s-bs-508901015.jpg)

> Varta TTZ10S-BS (ETN 508901015): 8 Ah motorcycle battery, 150 A (EN), 150×87×93 mm, positive terminal on the left.

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

- **Canonical URL**: https://bateriasonline.es/en/varta-ttz10s-bs-508901015
- **Language**: en
- **Brand**: Varta
- **Reference**: BOL-VARTA-508901015
- **EAN**: 4016987169070
- **MPN**: 508901015
- **Price**: 38,13 € (VAT incl., Spain)
- **Last updated**: 2026-11-09

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Varta |
| Range | VARTA PowerSports AGM |
| Application | Motorcycles |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 8 Ah |
| Cold cranking amps (EN) | 150 A |
| Length | 150 mm |
| Width | 87 mm |
| Height | 93 mm |
| Weight | 3.11 kg |
| Polarity | Positive terminal on the left |
| Terminal type | Y11 |
| ETN code | 508901015 |
| JIS code | TTZ10 S-4 YTZ10 S-4 TTZ10 S-BS YTZ10 S-BS |

## Quick description

Varta TTZ10S-BS (ETN 508 901 015, also written 508901015): motorcycle battery (AGM) with 12 V, 8 Ah and 150 A cold cranking current, measuring 150 × 87 × 93 mm, with the positive terminal on the left.

## Description

## Who the Varta TTZ10S-BS is for

The Varta TTZ10S-BS is made for motorcycles, scooters and quads. It is worth keeping the TTZ10S-BS on a maintenance charger if the bike is laid up over winter.
At 8 Ah it covers mid-capacity motorcycles, large scooters and light quads. In the Varta catalogue, the TTZ10S-BS belongs to the Powersports AGM line. [See all Varta batteries](https://bateriasonline.es/en/varta-batteries)

## Part numbers and codes for the Varta TTZ10S-BS

Shops, garages and catalogues identify the TTZ10S-BS with these codes:

| Commercial reference | TTZ10S-BS |
|---|---|
| ETN code | 508901015 (also 508 901 015) |
| Manufacturer short code | TZ10S-4/TZ10S-BS |
| EAN | 4016987169070 |
| Case size according to Varta | TZ10S-BS (TZ10S-4) |
| Base hold-down | B00 |
| Terminal type | Y11 |
| Also known as | Varta 508901015 · Varta 508 901 015 · Varta TZ10S-4 · Varta TZ10S-BS |
| Not to be confused with | Varta TTZ12S-BS (9 Ah, 200 A), Varta TTZ14S-BS (11 Ah, 230 A) |

## Equivalents and alternatives to the Varta TTZ10S-BS

Other AGM batteries that fit the TTZ10S-BS's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Exide AGM12-8 | AGM | 8.6 Ah | 145 A | 150 × 90 × 95 |
| Exide ETZ10-BS | AGM | 9 Ah | 145 A | 150 × 90 × 95 |
| Varta TZ10S (FA) | AGM | 9 Ah | 150 A | 150 × 87 × 93 |

## Varta TTZ10S-BS vs TZ10S (FA), YTX9-BS and YTX9 (FA): differences

What sets the TTZ10S-BS apart from its neighbours in the Varta range:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Varta TTZ10S-BS (this one) | 8 Ah | 150 A | 150 × 87 × 93 | left | 3.11 kg |
| Varta TZ10S (FA) | 9 Ah | 150 A | 150 × 87 × 93 | left | 3.15 kg |
| Varta YTX9-BS | 8 Ah | 135 A | 152 × 88 × 106 | left | 3.04 kg |
| Varta YTX9 (FA) | 8 Ah | 135 A | 151 × 87 × 106 | left | 3 kg |
| Varta YTX7A-BS | 6 Ah | 105 A | 151 × 88 × 94 | left | 2.29 kg |

- Varta TZ10S (FA): 1 Ah more, the same cranking power, the same dimensions.
- Varta YTX9-BS: the same capacity, 15 A less cranking power, a different height (106 mm instead of 93 mm). It only fits if there is room for 106 mm of height.
- Varta YTX9 (FA): the same capacity, 15 A less cranking power, a different height (106 mm instead of 93 mm). It only fits if there is room for 106 mm of height.
- Varta YTX7A-BS: 2 Ah less, 45 A less cranking power, the same dimensions.

## Before ordering the TTZ10S-BS, check this

- Measure the space: the TTZ10S-BS takes up 150 × 87 × 93 mm.
- The TTZ10S-BS has the positive terminal on the left: compare it with your current battery.
- Your current battery should say about 8 Ah; a little more is also fine.
- Check the EN amps on your battery: if it says 150 A or less, the TTZ10S-BS covers your engine.

## Frequently asked questions about the Varta TTZ10S-BS

### TTZ10S-BS or TZ10S (FA): which one suits me?

Compared with the TTZ10S-BS, the Varta TZ10S (FA) has 1 Ah more. With the same cranking power (150 A), the TTZ10S-BS and the TZ10S (FA) differ in capacity: the one with more Ah supports more load with the engine off. Both measure 150 × 87 × 93 mm, so they fit the same tray.

### Varta TTZ10S-BS or YTX9-BS/YTX9 (FA): what changes?

Mainly the height: the TTZ10S-BS is 93 mm tall and the Varta YTX9-BS 106 mm, with the same length and width. In capacity and cranking power, the YTX9-BS offers 8 Ah and 135 A against 8 Ah and 150 A. The Varta YTX9 (FA) is 106 mm tall, with 8 Ah and 135 A. Before choosing between the TTZ10S-BS and the YTX9-BS, measure the free height of the battery compartment with the cover or bonnet closed.

### Is the Varta 508901015 the same battery as the Varta TTZ10S-BS?

Yes. 508901015 is the ETN code Varta uses for its TTZ10S-BS battery, so you can search for it by either code.

### How much does the Varta TTZ10S-BS weigh?

3.11 kg, with 8 Ah of capacity. For reference, the Varta TZ10S (FA) (9 Ah) weighs 3.15 kg.

### Which battery is equivalent to the Varta TTZ10S-BS?

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

### Which side is the positive terminal on the Varta TTZ10S-BS?

On the TTZ10S-BS, 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 Varta TTZ10S-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 TTZ10S-BS is AGM

Inside, the TTZ10S-BS has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

## Other options if you are unsure about the TTZ10S-BS

- [All motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [The whole Varta range](https://bateriasonline.es/en/varta-batteries)
- [Odyssey ODS-AGM8E](https://bateriasonline.es/en/odyssey-ods-agm8e) · 8 Ah, 100 A, 137×86×99 mm

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