Varta YT9B Powersports AGM · Motorcycle battery 8Ah 115A
Motorcycle battery Varta YT9B 12V 8Ah 115A AGM images
Specifications
| Brand | VARTA |
|---|---|
| Part number | 508909012 |
| Voltage (V) | 12 |
| Capacity (C20) | 8Ah (c20) |
| Cold cranking amps (EN) | 115A |
| Technology | AGM |
| Length | 150 mm |
| Width | 70 mm |
| Height | 105 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.
Thank you
Varta YT9B 12V 8Ah 115A 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 508909012 is one of our motorcycle batteries, belongs to our Varta batteries and by capacity it sits among our 8Ah batteries.
Request a quote for your Motorcycle battery Varta YT9B 12V 8Ah 115A AGM
- Reply in under 24 working hours
- Best price guaranteed
The Varta 508909012 in practice
508909012 vs Varta 512903019
The Varta 508909012 offers 8 Ah and 115 A cold cranking in a 150 × 70 × 105 mm case. The Varta 512903019, same brand and technology, goes up to 12 Ah and 190 A with 2 mm more length The difference shows on diesels and in hard winters; for a daily-driven petrol car the extra is not needed.
Varta YT9B Powersports AGM Active (formerly Powersports AGM High Performance) 8Ah 115A 12V Motorcycle Battery
The Varta YT9B motorcycle battery (reference 508909012) is the 12 V, 8 Ah model delivering 115 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 150 × 70 × 105 mm and with the positive terminal on the left, it is the direct replacement for motorcycles fitted from the factory with an 8 Ah battery in this format.
- Construction built to withstand the vibration typical of two-wheelers.
- Direct replacement for the original motorbike, scooter or quad battery.
- High cranking peak in a compact, lightweight format.
- Performs well in the cold and after periods of inactivity.
Applications of the Varta YT9B battery
With 8 Ah, the Varta YT9B is sized for motorcycles, scooters, quads and personal watercraft, as a direct replacement for the original battery. 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 YT9B
The Varta YT9B is made in the 150 × 70 × 105 mm format. The positive terminal on the left determines which side the cables end up on: it is the detail behind most mistaken purchases, so it is worth checking before ordering. It uses a B00 hold-down, the system that anchors it to the vehicle's battery tray. Checking the three dimensions and the terminal layout before buying avoids the most common mistake when replacing a battery.
The Varta YT9B and the Powersports AGM Active range
The Powersports AGM Active range consists of AGM motorcycle batteries activated and charged at the factory, ready to fit. They combine the toughness of AGM technology with the convenience of immediate installation.
They are aimed at general motorcycle and scooter use, with reliable starting and no maintenance from day one.
Unlike a car battery, what matters here is power density in a minimal size and resistance to vibration. It is the direct substitute for the original motorcycle battery, with the advantage of reliable starting even in the cold and after periods of inactivity. 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
Varta is an original equipment (OEM) supplier to a good share of Europe's car manufacturers: many cars leave the factory with a Varta fitted. Buying a replacement means, in most cases, refitting the original battery with the same quality and the brand's official warranty.
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.
More than 100 manufacturing parameters are checked on every Varta battery before it leaves the plant, a level of rigour that explains why so many workshops and manufacturers trust the brand as their first-choice replacement.
Manufacturer's warranty
The Varta YT9B 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.
-
-
ReferenceBCOM-VARTA-508909012
Data sheet
-
BrandVARTA
-
Reference508909012
-
ModelVarta Powersports AGM Active
-
Voltage (V)12
-
Length150 mm
-
Width70 mm
-
Height105 mm
-
TechnologyAGM
-
EAN4016987169094
-
Terminal layoutPositive terminal on the left
-
JISYT9B
-
Hold-downB00
-
Cold cranking amps (EN)115A
-
Capacity (C20)8Ah (c20)
-
Additional ETN508909012K542
Specific References
-
EAN134016987169094
-
MPN508909012
Codes and references Varta 508909012
| Brand | Varta · see all Varta batteries |
|---|---|
| Manufacturer range | Powersports AGM Active (formerly Powersports AGM High Performance) |
| Manufacturer part number (MPN) | 508909012 |
| Also known as | Varta Powersports AGM High Performance 508909012 · Varta Powersports AGM Active 508909012 |
| JIS equivalents | T9B · YT9B |
| EAN-13 barcode | 4016987169094 |
| Dimensions (length × width × height) | 150 × 70 × 105 mm (150x70x105) |
Varta 508909012: alternatives with the same dimensions
Batteries from our catalogue with the same dimensions, voltage and technology as the Varta 508909012 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
YT9B
This battery
|
12V 8Ah 115A | AGM | ||||||||||||||||||||||
Varta
YT9B-BS
Same size |
12V 8Ah 115A | AGM | €93.10 +€93.10 | |||||||||||||||||||||
| ||||||||||||||||||||||||
| YT9B | YT9B-BS | |
|---|---|---|
| Capacity | 8 Ah | 8 Ah |
| Cold cranking (EN) | 115 A | 115 A |
| Technology | AGM | AGM |
| Dimensions (mm) | 150 × 70 × 105 | 149 × 70 × 105 |
| Positive terminal | Positive terminal on the left | Positive terminal on the left |
| Price | €93.10 |
Exide
ET9B-BS
Same size Varta YT9B vs Exide ET9B-BS
Same size · +€30.70
It has the same dimensions, voltage and technology as the YT9B, although it is not a manufacturer-approved equivalent. Compared with the YT9B it has 5 A of cold cranking less. It costs €30.70 more. Check the positive terminal side and the original capacity before ordering; otherwise it is a straight swap.
| YT9B | ET9B-BS | |
|---|---|---|
| Capacity | 8 Ah | 8 Ah |
| Cold cranking (EN) | 115 A | 110 A |
| Technology | AGM | AGM |
| Dimensions (mm) | 150 × 70 × 105 | 150 × 70 × 105 |
| Positive terminal | Positive terminal on the left | Positive terminal on the left |
| Price | €30.70 |
Automatic selection by dimensions (±3 mm), voltage, technology and capacity (−10 % / +20 %). Official manufacturer warranty on every option.
Other 8Ah batteries: We stock 29 models of 8 Ah to compare by price, technology and cold cranking: see all 8Ah batteries.
Recommended accessories
Frequently asked questions
Is the Varta YT9B an AGM battery and what are the benefits of AGM?
Yes. The YT9B from Varta uses AGM (Absorbent Glass Mat) technology: a sealed lead-acid battery where the electrolyte is absorbed in a glass-fibre mat. It withstands more charge/discharge cycles than a conventional one, handles heat better and is the required technology for motorcycles with advanced Start-Stop and regenerative braking. Expected lifespan: 5-8 years under normal conditions.
How should this motorcycle battery be charged?
With a 12 V motorcycle charger delivering at most 10 % of its capacity: 0.8 A for its 8 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.
What is the service life of the YT9B model?
Expected lifespan of the Varta YT9B is 4 to 6 years, keeping it charged when the bike is not in use. In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured.
What are the dimensions of the Varta YT9B battery?
Dimensions (length × width × height) are 150×70×105 mm — also written as 150x70x105 mm — following the European DIN standard. Always measure the space in your motorcycle before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.
On which side is the positive of the YT9B model?
Polarity: positive on the left. To identify it, place the battery in front of you with the terminals facing you and check which side the positive (+, marked with a red ring) is on. Before buying, verify the polarity matches your current battery: switching polarity forces longer cables or system reconfiguration, with short-circuit risk.
Will the Varta YT9B battery fit my motorcycle?
Three options to confirm: 1) enter your number plate in the finder (DGT/DVLA/KBA auto-detect your model and engine); 2) check the "Compatible vehicles" tab on this page, where we list every vehicle verified by our technical team; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 10:00–13:30 and 16:30–18:00 (Spanish time, CET)). The YT9B typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which batteries are equivalent to the Varta YT9B?
Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop motorcycles. See the "Equivalents" section to view recommended options at the same performance level.
The top-rated online battery store in Spain
-
Audited by Trustpilot, no filters, no edits. The top-rated battery store in Spain.
Trustpilot · verified, no filters
-
Official Varta distributor
Official Varta wholesale distributor. 100% genuine batteries, recently manufactured, best price and no middlemen.
World’s best-selling battery brand
-
+100,000 satisfied customers
More than 100,000 customers already trust baterias.com — and recommend us to their friends and family.
They trust us and recommend us
Choose trust, choose quality, choose baterias.com.