# Varta YB9-B · Motorcycle battery 12V 9Ah 85A

![Varta YB9-B · Motorcycle battery 12V 9Ah 85A](https://bateriasonline.es/1236-home_default/varta-yb9-b-509014009.jpg)

> Varta YB9-B (ETN 509014009): 9 Ah motorcycle battery, 85 A (EN), 136×76×139 mm, positive terminal on the left. Equivalent to Exide 12N9-4B-1.

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

- **Canonical URL**: https://bateriasonline.es/en/varta-yb9-b-509014009
- **Language**: en
- **Brand**: Varta
- **Reference**: BOL-VARTA-509014009
- **EAN**: 4016987169117
- **MPN**: 509014009
- **Price**: 108,20 € (VAT incl., Spain)
- **Last updated**: 2026-11-09

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Varta |
| Range | VARTA PowerSports SLI Freshpack |
| Application | Motorcycles |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 9 Ah |
| Cold cranking amps (EN) | 85 A |
| Length | 136 mm |
| Width | 76 mm |
| Height | 139 mm |
| Weight | 2.98 kg |
| Polarity | Positive terminal on the left |
| Terminal type | Y6 |
| ETN code | 509014009 |
| JIS code | 12N9-4 B-1 YB9-B |

## Quick description

Varta YB9-B (ETN 509 014 009, also written 509014009): motorcycle battery with 12 V, 9 Ah and 85 A cold cranking current, measuring 136 × 76 × 139 mm, with the positive terminal on the left. If yours has the positive terminal on the right, you need the Varta YB9L-B.

## Description

## The Varta YB9-B at a glance

The Varta YB9-B is a motorcycle starter battery: compact, vibration-resistant and with just the right power to turn the starter motor and feed the electronics. With 9 Ah, the YB9-B suits motorcycles and scooters that had a battery of that capacity.
At 9 Ah it covers mid-capacity motorcycles, large scooters and light quads. Varta lists the YB9-B in its Powersports SLI Freshpack line. [See all Varta batteries](https://bateriasonline.es/en/varta-batteries)

## Varta YB9-B codes and part numbers

Look for any of these YB9-B codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | YB9-B |
|---|---|
| ETN code | 509014009 (also 509 014 009) |
| Manufacturer short code | 12N9-4B-1/B9-B |
| EAN | 4016987169117 |
| Base hold-down | B00 |
| Terminal type | Y6 |
| Also known as | Varta 509014009 · Varta 509 014 009 · Varta 12N9-4B-1 · Varta B9-B |
| Not to be confused with | Varta YB9L-B (9 Ah, 85 A, positive terminal on the right) |

## Equivalents and alternatives to the Varta YB9-B

Same dimensions and polarity as the YB9-B, with similar capacity and cranking power; as a conventional battery, the YB9-B can also be replaced by an EFB or AGM of the same size if you want more cycles.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Exide 12N9-4B-1 | Lead-acid | 9 Ah | 85 A | 135 × 75 × 140 |
| Exide EB9-B | Lead-acid | 9 Ah | 100 A | 135 × 75 × 140 |
| Exide EB7-A | Lead-acid | 8 Ah | 85 A | 135 × 75 × 135 |
| Varta TB9 (FA) | AGM | 9 Ah | 100 A | 135 × 75 × 139 |

## Varta YB9-B vs TB9 (FA), YB9L-B and YB7-A: which one to choose?

The real differences between the YB9-B and the closest Varta models:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Varta YB9-B (this one) | 9 Ah | 85 A | 136 × 76 × 139 | left | 2.98 kg |
| Varta TB9 (FA) | 9 Ah | 100 A | 135 × 75 × 139 | left | 3.08 kg |
| Varta YB9L-B | 9 Ah | 85 A | 136 × 76 × 140 | right | 2.98 kg |
| Varta YB7-A | 8 Ah | 110 A | 137 × 76 × 134 | left | 3.04 kg |

- Varta TB9 (FA): the same capacity, 15 A more cranking power, the same dimensions, AGM technology.
- Varta YB9L-B: identical to the YB9-B except for the positive terminal, which is on the other side (positive terminal on the right).
- Varta YB7-A: 1 Ah less, 25 A more cranking power, a different case (137 × 76 × 134 mm).

## Check this before ordering the Varta YB9-B

- Length, width and height of the YB9-B: 136 × 76 × 139 mm.
- Polarity of the YB9-B: positive terminal on the left (if yours has it on the other side, the cables will not reach).
- Your current battery should say about 9 Ah; a little more is also fine.
- Cold cranking: 85 A (EN), equal to or higher than the original.

## Frequently asked questions about the Varta YB9-B

### Varta YB9-B or TB9 (FA)?

Compared with the YB9-B, the Varta TB9 (FA) has 15 A more cranking power and AGM technology. If your current battery says 100 A or more, choose the TB9 (FA); if it says 85 A or less, the YB9-B is enough. Both measure 136 × 76 × 139 mm, so they fit the same tray.

### What is the difference between the Varta YB9-B and the YB9L-B?

They are the same battery with the terminals swapped: positive terminal on the left on the YB9-B, positive terminal on the right on the YB9L-B. Look at your current battery with the terminals facing you and pick the one that matches. That is why their ETNs only differ in the middle group: 509 014 009 for the YB9-B and 509 015 009 for the YB9L-B.

### Is the Varta 509014009 the same battery as the Varta YB9-B?

Yes. 509014009 is the ETN code Varta uses for its YB9-B battery, so you can search for it by either code.

### How much does the Varta YB9-B weigh?

The YB9-B weighs 2.98 kg. For reference, the Varta TB9 (FA) (9 Ah) weighs 3.08 kg.

### Which battery is equivalent to the Varta YB9-B?

With the same dimensions, polarity and similar capacity you have the Exide 12N9-4B-1, Exide EB9-B and Exide EB7-A. As the YB9-B is a conventional battery, an EFB or AGM of the same size also works.

### Which charger does the Varta YB9-B 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.

## Inside the YB9-B: lead-acid technology

The YB9-B is a conventional lead-acid battery, with plates immersed in liquid electrolyte. In cars without energy management, the YB9-B needs no special registration: just connect it.

## More batteries to compare with the YB9-B

- [All motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [Full Varta catalogue](https://bateriasonline.es/en/varta-batteries)
- [Exide 12N9-4B-1](https://bateriasonline.es/en/exide-12n9-4b-1) · 9 Ah, 85 A, 135×75×140 mm
- [Exide EB9-B](https://bateriasonline.es/en/exide-eb9-b) · 9 Ah, 100 A, 135×75×140 mm

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