Varta YTX14AH Powersports AGM · Motorcycle battery 12Ah 210A
Specifications
| Brand | VARTA |
|---|---|
| Part number | 512909021 |
| Voltage (V) | 12 |
| Capacity (C20) | 12Ah (c20) |
| Cold cranking amps (EN) | 210A |
| Technology | AGM |
| Length | 133 mm |
| Width | 90 mm |
| Height | 164 mm |
This product is priced on demand to offer you the best available price at all times.
Please contact us to request a quote and we will inform you about availability and the best price on the entire website, as well as the delivery time.
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Varta YTX14AH 12V 12Ah 210A is a sealed motorcycle battery ready to fit, with the JIS reference your mechanic recognises at a glance. Vibration-resistant, keeps voltage during the winter off-season and cranks first time when you take it out for a ride.
Why this motorcycle battery?
- Same JIS referenceas your bike's original — fits first time
- Sealed and ready to useno acid handling, no refills
- Survives winter storageholds charge through long off-season
Where it fits: the Varta 512909021 is one of our motorcycle batteries, belongs to our Varta batteries and by capacity it sits among our 12Ah batteries.
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Varta YTX14AH Powersports AGM Active (formerly Powersports AGM High Performance) 12Ah 210A 12V Motorcycle Battery
The Varta YTX14AH motorcycle battery (reference 512909021) is the 12 V, 12 Ah model delivering 210 A of cold cranking power (EN), from Varta's Powersports AGM Active (formerly Powersports AGM High Performance) range, designed for motorcycles, scooters, quads and personal watercraft. Measuring 133 × 90 × 164 mm and with the positive terminal on the left, it is the direct replacement for motorcycles fitted from the factory with an 12 Ah battery in this format.
- Performs well in the cold and after periods of inactivity.
- High cranking peak in a compact, lightweight format.
- Direct replacement for the original motorbike, scooter or quad battery.
- Construction built to withstand the vibration typical of two-wheelers.
Applications of the Varta YTX14AH battery
The Varta YTX14AH covers the needs of motorcycles, scooters, quads and personal watercraft with 12 Ah of capacity and a construction built for that use. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a B00 hold-down.
Format and fitting of the Varta YTX14AH
In terms of format, the Varta YTX14AH measures 133 × 90 × 164 mm (length × width × height). The positive terminal on the left determines which side the cables run to: it is the detail that causes the most buying mistakes, so it is worth checking before ordering. It uses a B00 hold-down, the system that secures it to the vehicle's battery tray. Checking the three dimensions and the terminal positions before buying avoids the most common mistake when replacing a battery.
The Varta YTX14AH and the Powersports AGM Active range
The Powersports AGM Active series is Varta's AGM motorcycle line that arrives activated and charged from the factory: it fits straight on, with no acid to add and no charging before use. It combines the ruggedness of AGM (resistance to vibration and to deep discharge) with the greatest possible ease of installation.
In the new portfolio it also absorbs the former high-performance versions (AGM High Performance), so it covers everything from general use to large-capacity, custom and trail bikes with heavy cranking demands.
On two wheels, vibration and extreme temperatures take a heavy toll on the battery. This range reinforces the internal plate mounting and seals the unit to withstand that use, delivering the instant burst of cranking power a motorbike or quad engine needs after weeks standing idle. This battery used to belong to Varta's Powersports AGM High Performance range; following the brand's change of commercial naming (2025), it now forms part of the new Powersports AGM Active series.
Why choose a Varta battery
A good share of the vehicles on Europe's roads left the factory with a Varta fitted: the brand has been supplying the assembly lines of the leading car groups for decades. Replacing with a Varta is, in practice, giving the vehicle back the battery its manufacturer intended.
Varta batteries are made under the Clarios group with German technology and quality controls that make them one of the best-selling choices in Europe. As a lead battery, it is 100% recyclable through any collection point.
Varta's production combines automated lines with verification of more than 100 parameters per unit; that traceability is what underpins its reputation for reliable starting throughout the battery's life.
Manufacturer's warranty
The Varta YTX14AH battery comes with the official manufacturer warranty.
Care and maintenance
If the bike goes unused for long spells, a trickle charger greatly extends the battery's life and prevents sulphation. Storing it somewhere dry and checking the terminals at the start of each season helps it start first time. Motorcycle batteries suffer in the cold and when left idle: in winter, a maintenance charger stops the battery from discharging completely. With this care, it will typically deliver well over several years of service.
Technical sheet
Download the official technical sheet for this battery with all the manufacturer data.
Data sheet
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BrandVARTA
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Reference512909021
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ModelVarta Powersports AGM Active
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Voltage (V)12
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Length133 mm
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Width90 mm
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Height164 mm
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TechnologyAGM
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EAN4016987169353
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Terminal layoutPositive terminal on the left
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JISYTX14AH
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Hold-downB00
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Cold cranking amps (EN)210A
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Capacity (C20)12Ah (c20)
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Additional ETN512909021K542
Specific References
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EAN134016987169353
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MPN512909021
Codes and references Varta 512909021
| Brand | Varta · see all Varta batteries |
|---|---|
| Manufacturer range | Powersports AGM Active (formerly Powersports AGM High Performance) |
| Manufacturer part number (MPN) | 512909021 |
| Also known as | Varta Powersports AGM High Performance 512909021 · Varta Powersports AGM Active 512909021 |
| JIS equivalents | TX14AH · YTX14AH |
| EAN-13 barcode | 4016987169353 |
| Dimensions (length × width × height) | 133 × 90 × 164 mm (133x90x164) |
Varta 512909021: alternatives with the same dimensions
Batteries from our catalogue with the same dimensions, voltage and technology as the Varta 512909021 and a similar capacity, sorted by sales. They are not manufacturer-approved equivalents: check the polarity and capacity of your original battery.
| Product | Specifications | Technology | Price | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Varta
YTX14AH
This battery
|
12V 12Ah 210A | AGM | €58.95 | |||||||||||||||||||||
Varta
YTX14AH-BS
Same size |
12V 12Ah 210A | AGM | €55.80 −€3.15 | |||||||||||||||||||||
| ||||||||||||||||||||||||
| YTX14AH | YTX14AH-BS | |
|---|---|---|
| Capacity | 12 Ah | 12 Ah |
| Cold cranking (EN) | 210 A | 210 A |
| Technology | AGM | AGM |
| Dimensions (mm) | 133 × 90 × 164 | 134 × 89 × 166 |
| Positive terminal | Positive terminal on the left | Positive terminal on the left |
| Price | €58.95 | €55.80 |
Exide
ETX14AH-BS
Same size
Varta YTX14AH vs Exide ETX14AH-BS
Same size · −€14.65
Same case and same technology as the YTX14AH: an alternative by size, not an official equivalent. Compared with the YTX14AH it has the same Ah and cranking power. It costs €14.65 less. If the polarity matches and your bike had a similar capacity, it works as a replacement; if in doubt, ask us with your model.
| YTX14AH | ETX14AH-BS | |
|---|---|---|
| Capacity | 12 Ah | 12 Ah |
| Cold cranking (EN) | 210 A | 210 A |
| Technology | AGM | AGM |
| Dimensions (mm) | 133 × 90 × 164 | 135 × 90 × 165 |
| Positive terminal | Positive terminal on the left | Positive terminal on the left |
| Price | €58.95 | €44.30 |
Automatic selection by dimensions (±3 mm), voltage, technology and capacity (−10 % / +20 %). Official manufacturer warranty on every option.
Other 12Ah batteries: We stock 48 models of 12 Ah to compare by price, technology and cold cranking: see all 12Ah batteries. Same size (133 × 90 × 164 mm): batteries of 133 × 90 × 164 mm.
Recommended accessories
Frequently asked questions
Is the Varta YTX14AH an AGM battery and what are the benefits of AGM?
Yes: the YTX14AH from Varta uses AGM (Absorbent Glass Mat) technology, a sealed lead-acid battery whose electrolyte soaks a glass-fibre mat. It withstands more cycles than a conventional battery and copes better with heat.
How should this motorcycle battery be charged?
With a 12 V motorcycle charger delivering at most 10 % of its capacity: 1.2 A for its 12 Ah. High-current car chargers can damage it. If the bike is laid up for the winter, keep it on a maintenance charger.
Does it need maintenance?
No: being AGM, it is sealed and nothing needs topping up. Just keep it charged if the bike stands for a long time.
How long does the Varta YTX14AH battery last?
As a guide, you can expect the Varta YTX14AH to last 4 to 6 years, keeping it charged when the bike is not in use, although the real figure may be higher or lower. It can vary considerably with usage (short or long journeys), temperature, the condition of the alternator and charging system, power drawn with the engine off and maintenance. Cold demands more at every start and intense heat evaporates the electrolyte.
What are the dimensions of the Varta YTX14AH battery?
Its dimensions are 133×90×164 mm, also written 133x90x164 mm; the height already includes the terminals. Check the room available in your motorcycle, because a single millimetre too much can stop the clamp from closing.
Which side is the positive terminal on this battery?
On the Varta YTX14AH, the polarity is positive on the left. It must match your current battery: reversed polarity means lengthening cables or reconfiguring the system, with a risk of short circuit. To check, stand the battery in front of you with the terminals nearest you: the positive (+) is the one with the red ring.
Does this battery fit my motorcycle?
Not sure? Try your number plate in the finder (DGT/DVLA/KBA detect model and engine) or the "Compatible vehicles" tab, checked by our technical team; if your motorcycle is not there, send us make, model, engine and year on WhatsApp and we will reply during business hours (Mon–Fri 10:00–13:30 and 16:30–18:00 (Spanish time, CET)). Always cross-check with what the motorcycle manufacturer states in the owner's handbook.
Which batteries are equivalent to the Varta YTX14AH?
A battery interchangeable with the Varta YTX14AH must match it on dimensions (133×90×164 mm), polarity (positive on the left), capacity (12 Ah) and cranking current (210 A). The "Equivalents" section further down lists the recommended alternatives.
Varta YTX14AH or Varta YTX14AH-BS: which one to choose?
It has the same dimensions, voltage and technology as the YTX14AH, although it is not a manufacturer-approved equivalent. Compared with the YTX14AH it has the same Ah and cranking power. It costs €3.15 less. Check the positive terminal side and the original capacity before ordering; otherwise it is a straight swap.
Varta YTX14AH or Exide ETX14AH-BS: which one to choose?
Same case and same technology as the YTX14AH: an alternative by size, not an official equivalent. Compared with the YTX14AH it has the same Ah and cranking power. It costs €14.65 less. If the polarity matches and your bike had a similar capacity, it works as a replacement; if in doubt, ask us with your model.
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