# Varta TX14AH (FA) · Motorcycle battery 12V 12Ah 210A

![Varta TX14AH (FA) · Motorcycle battery 12V 12Ah 210A](https://bateriasonline.es/1572-home_default/varta-tx14ah-fa-512909021.jpg)

> Varta TX14AH (FA) (ETN 512909021): 12 Ah motorcycle battery, 210 A (EN), 133×90×164 mm, positive terminal on the left, AGM. Equivalent to Exide AGM12-14.1.

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

- **Canonical URL**: https://bateriasonline.es/en/varta-tx14ah-fa-512909021
- **Language**: en
- **Brand**: Varta
- **Reference**: BOL-VARTA-512909021
- **EAN**: 4016987169353
- **MPN**: 512909021
- **Last updated**: 2026-11-09

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Varta |
| Range | VARTA PowerSports AGM Active |
| Application | Motorcycles |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 12 Ah (C10) |
| Cold cranking amps (EN) | 210 A |
| Length | 133 mm |
| Width | 90 mm |
| Height | 164 mm |
| Weight | 4.4 kg |
| Polarity | Positive terminal on the left |
| Terminal type | Y4 |
| ETN code | 512909021 |
| JIS code | TX14 AH YTX14 AH |

## Quick description

The Varta TX14AH (FA) (ETN 512 909 021, also written 512909021) is a motorcycle battery (AGM) with 12 V, 12 Ah and 210 A cold cranking current, measuring 133 × 90 × 164 mm, with the positive terminal on the left. Need the positive terminal on the right? The same battery is the Varta TX14AHL (FA).

## Description

## The Varta TX14AH (FA) at a glance

The Varta TX14AH (FA) is a motorcycle starter battery: compact, vibration-resistant and with just the right power to turn the starter motor and feed the electronics. It is worth keeping the TX14AH (FA) on a maintenance charger if the bike is laid up over winter.
At 12 Ah it covers mid-capacity motorcycles, large scooters and light quads. Varta lists the TX14AH (FA) in its Powersports AGM Active line. [More Varta batteries](https://bateriasonline.es/en/varta-batteries)

## Part numbers and codes for the Varta TX14AH (FA)

Look for any of these TX14AH (FA) codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | TX14AH (FA) |
|---|---|
| ETN code | 512909021 (also 512 909 021) |
| EAN | 4016987169353 |
| Case size according to Varta | BTX14AH |
| Base hold-down | B00 |
| Terminal type | Y4 |
| Also known as | Varta 512909021 · Varta 512 909 021 · BTX14AH |
| Not to be confused with | Varta TX14AHL (FA) (12 Ah, 210 A, positive terminal on the right), Varta TX14H (FA) (16 Ah, 240 A) |

## Equivalents and alternatives to the Varta TX14AH (FA)

Other AGM batteries that fit the TX14AH (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 AGM12-14.1 | AGM | 12 Ah | 210 A | 135 × 90 × 165 |
| Exide ETX14AH-BS | AGM | 12 Ah | 210 A | 135 × 90 × 165 |
| Fulbat FTX14AH-BS | AGM | 12.6 Ah | 210 A | 135 × 90 × 167 |

## Varta TX14AH (FA) vs B12A (FA), TX14AHL (FA) and YTX16-BS-1

How the TX14AH (FA) compares with Varta batteries of similar size and capacity:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Varta TX14AH (FA) (this one) | 12 Ah | 210 A | 133 × 90 × 164 | left | 4.4 kg |
| Varta B12A (FA) | 12 Ah | 125 A | 134 × 81 × 160 | left | 3.88 kg |
| Varta TX14AHL (FA) | 12 Ah | 210 A | 133 × 90 × 164 | right | 4.4 kg |
| Varta YTX16-BS-1 | 14 Ah | 210 A | 150 × 87 × 161 | left | 4.96 kg |

- Varta B12A (FA): the same capacity, 85 A less cranking power, a different case (134 × 81 × 160 mm).
- If the positive terminal of your battery is on the other side, the one you need is the Varta TX14AHL (FA) (positive terminal on the right).
- Varta YTX16-BS-1: 2 Ah more, the same cranking power, a different case (150 × 87 × 161 mm).

## Check this before ordering the Varta TX14AH (FA)

- Cold cranking: 210 A (EN), equal to or higher than the original.
- With 12 Ah, the TX14AH (FA) replaces an original battery of that capacity or slightly less.
- The TX14AH (FA) has the positive terminal on the left: compare it with your current battery.
- The TX14AH (FA) needs 133 × 90 × 164 mm of space: measure it with the hold-down clamp in place.

## Frequently asked questions about the Varta TX14AH (FA)

### TX14AH (FA) or B12A (FA): which one suits me?

Compared with the TX14AH (FA), the Varta B12A (FA) has 85 A less cranking power. The TX14AH (FA) cranks harder; the B12A (FA) is only a good option if your original battery says 125 A or less. Mind the space: the B12A (FA) measures 134 × 81 × 160 mm.

### Varta TX14AH (FA) or TX14AHL (FA): what is the difference?

Only the polarity: the TX14AH (FA) has the positive terminal on the left and the TX14AHL (FA) the positive terminal on the right. Capacity (12 Ah), cranking power and dimensions are identical. That is why their ETNs only differ in the middle group: 512 909 021 for the TX14AH (FA) and 512 919 021 for the TX14AHL (FA).

### Is the Varta 512909021 the same battery as the Varta TX14AH (FA)?

Yes. 512909021 is the ETN code Varta uses for its TX14AH (FA) battery, so you can search for it by either code.

### How much does the Varta TX14AH (FA) weigh?

4.4 kg, with 12 Ah of capacity. For reference, the Varta B12A (FA) (12 Ah) weighs 3.88 kg.

### Which battery is equivalent to the Varta TX14AH (FA)?

Only other AGM batteries with its dimensions and polarity: Exide AGM12-14.1, Exide ETX14AH-BS and Fulbat FTX14AH-BS. Neither an EFB nor a conventional battery replaces the TX14AH (FA).

### Which charger does the Varta TX14AH (FA) 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.

## AGM technology in the TX14AH (FA)

The TX14AH (FA) is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. Being sealed, the TX14AH (FA) can be fitted in the boot or under a seat with no risk of spills.

## More batteries to compare with the TX14AH (FA)

- [Other motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [Full Varta catalogue](https://bateriasonline.es/en/varta-batteries)
- [Exide AGM12-14.1](https://bateriasonline.es/en/exide-agm12-14-1) · 12 Ah, 210 A, 135×90×165 mm
- [Exide ETX14AH-BS](https://bateriasonline.es/en/exide-etx14ah-bs) · 12 Ah, 210 A, 135×90×165 mm

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