# Varta T9B (FA) · Motorcycle battery 12V 8Ah 115A

![Varta T9B (FA) · Motorcycle battery 12V 8Ah 115A](https://bateriasonline.es/1450-home_default/varta-t9b-fa-508909012.jpg)

> Varta T9B (FA) (ETN 508909012): 8 Ah motorcycle battery, 115 A (EN), 150×70×105 mm, positive terminal on the left, AGM. Equivalent to Exide AGM12-7.1.

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

- **Canonical URL**: https://bateriasonline.es/en/varta-t9b-fa-508909012
- **Language**: en
- **Brand**: Varta
- **Reference**: BOL-VARTA-508909012
- **EAN**: 4016987169094
- **MPN**: 508909012
- **Last updated**: 2026-11-09

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Varta |
| Range | VARTA PowerSports AGM Active |
| Application | Motorcycles |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 8 Ah (C10) |
| Cold cranking amps (EN) | 115 A |
| Length | 150 mm |
| Width | 70 mm |
| Height | 105 mm |
| Weight | 2.78 kg |
| Polarity | Positive terminal on the left |
| Terminal type | Y11 |
| ETN code | 508909012 |
| JIS code | T9 B YT9 B |

## Quick description

The Varta T9B (FA) (ETN 508 909 012, also written 508909012) is a motorcycle battery (AGM) with 12 V, 8 Ah and 115 A cold cranking current, measuring 150 × 70 × 105 mm, with the positive terminal on the left.

## Description

## The Varta T9B (FA) at a glance

The Varta T9B (FA) is made for motorcycles, scooters and quads. It handles frame vibration and idle periods better than an adapted car battery.
At 8 Ah it covers mid-capacity motorcycles, large scooters and light quads. In the Varta catalogue, the T9B (FA) belongs to the Powersports AGM Active line. [See all Varta batteries](https://bateriasonline.es/en/varta-batteries)

## Part numbers and codes for the Varta T9B (FA)

This is how the Varta T9B (FA) appears on the label and in parts catalogues:

| Commercial reference | T9B (FA) |
|---|---|
| ETN code | 508909012 (also 508 909 012) |
| EAN | 4016987169094 |
| Case size according to Varta | BT9B |
| Base hold-down | B00 |
| Terminal type | Y11 |
| Also known as | Varta 508909012 · Varta 508 909 012 · BT9B |
| Not to be confused with | Varta T7B (FA) (6.5 Ah, 85 A) |

## Equivalents and alternatives to the Varta T9B (FA)

Other AGM batteries that fit the T9B (FA)'s tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Exide AGM12-7.1 | AGM | 8 Ah | 110 A | 150 × 70 × 105 |
| Exide ET9B-BS | AGM | 8 Ah | 110 A | 150 × 70 × 105 |
| Motobatt MBT9B4 | AGM | 9 Ah | 115 A | 150 × 70 × 104 |
| Varta YT9B-BS | AGM | 8 Ah | 115 A | 149 × 70 × 105 |

## Varta T9B (FA) vs YTX9 (FA), YT7B-BS and T7B (FA): differences

Torn between the T9B (FA) and another similar Varta? This is what changes:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Varta T9B (FA) (this one) | 8 Ah | 115 A | 150 × 70 × 105 | left | 2.78 kg |
| Varta YTX9 (FA) | 8 Ah | 135 A | 151 × 87 × 106 | left | 3 kg |
| Varta YT7B-BS | 7 Ah | 120 A | 150 × 66 × 94 | left | 2.35 kg |
| Varta T7B (FA) | 6.5 Ah | 85 A | 150 × 66 × 93 | left | 2.3 kg |

- Varta YTX9 (FA): the same capacity, 20 A more cranking power, a different case (151 × 87 × 106 mm).
- Varta YT7B-BS: 1 Ah less, 5 A more cranking power, a different height (94 mm instead of 105 mm). It is the option if your battery tray cannot take the 105 mm height of the T9B (FA).
- Varta T7B (FA): 1.5 Ah less, 30 A less cranking power, a different case (150 × 66 × 93 mm).

## Check this before ordering the Varta T9B (FA)

- The T9B (FA) needs 150 × 70 × 105 mm of space: measure it with the hold-down clamp in place.
- Polarity of the T9B (FA): positive terminal on the left (if yours has it on the other side, the cables will not reach).
- Your current battery should say about 8 Ah; a little more is also fine.
- Check the EN amps on your battery: if it says 115 A or less, the T9B (FA) covers your engine.

## Frequently asked questions about the Varta T9B (FA)

### T9B (FA) or YTX9 (FA): which one suits me?

Compared with the T9B (FA), the Varta YTX9 (FA) has 20 A more cranking power. If your current battery says 135 A or more, choose the YTX9 (FA); if it says 115 A or less, the T9B (FA) is enough. Mind the space: the YTX9 (FA) measures 151 × 87 × 106 mm.

### Varta T9B (FA) or YT7B-BS: what changes?

Mainly the height: the T9B (FA) is 105 mm tall and the Varta YT7B-BS 94 mm, with the same length and width. In capacity and cranking power, the YT7B-BS offers 7 Ah and 120 A against 8 Ah and 115 A. Before choosing between the T9B (FA) and the YT7B-BS, measure the free height of the battery compartment with the cover or bonnet closed.

### Is the Varta 508909012 the same battery as the Varta T9B (FA)?

Yes. 508909012 is the ETN code Varta uses for its T9B (FA) battery, so you can search for it by either code.

### How much does the Varta T9B (FA) weigh?

2.78 kg, with 8 Ah of capacity. For reference, the Varta YTX9 (FA) (8 Ah) weighs 3 kg.

### Which battery is equivalent to the Varta T9B (FA)?

Only other AGM batteries with its dimensions and polarity: Exide AGM12-7.1, Exide ET9B-BS and Motobatt MBT9B4. Neither an EFB nor a conventional battery replaces the T9B (FA).

### Which side is the positive terminal on the Varta T9B (FA)?

On the T9B (FA), 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.

## What it means that the T9B (FA) is AGM

Inside, the T9B (FA) has glass fibre separators (AGM) that hold the electrolyte. The T9B (FA) needs a charger with an AGM mode that does not exceed 14.7 V.

## More batteries to compare with the T9B (FA)

- [All motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [The whole Varta range](https://bateriasonline.es/en/varta-batteries)
- [Exide AGM12-7.1](https://bateriasonline.es/en/exide-agm12-7-1) · 8 Ah, 110 A, 150×70×105 mm
- [Exide ET9B-BS](https://bateriasonline.es/en/exide-et9b-bs) · 8 Ah, 110 A, 150×70×105 mm

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