Exide ET9B-BS YT9B-BS · Motorcycle battery 8Ah 110A AGM
Specifications
| Brand | EXIDE |
|---|---|
| Part number | ET9B-BS |
| Voltage (V) | 12 |
| Capacity (C20) | 8Ah (c20) |
| Cold cranking amps (EN) | 110A |
| Technology | AGM |
| Length | 150 mm |
| Width | 70 mm |
| Height | 105 mm |
Exide ET9B-BS 12V 8Ah 110A 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 Exide ET9B-BS is one of our motorcycle batteries, belongs to our Exide batteries and by capacity it sits among our 8Ah batteries.
The Exide ET9B-BS in practice
Which cars do our customers fit it to?
Mostly to Yamaha Tmax, Yamaha 700 and Yamaha YP (3 orders with the vehicle identified). Treat this as guidance, not confirmation: size and positive-terminal side depend on the exact version.

Motorcycle battery Exide ET9B-BS Moto AGM 8Ah 110A 12V
With 8 Ah at 12 V and 110 A of cold cranking current (EN), the Exide ET9B-BS with AGM technology replaces the original battery of motorcycles, scooters, quads and personal watercraft. Measuring 150 × 70 × 105 mm and the positive terminal on the left, it is the direct replacement for motorcycles fitted from the factory with a 8 Ah battery of this format.
- Holds its charge through winter storage.
- Compact and lightweight format.
- AGM: faster recharging and better cycle resistance than a conventional battery.
- Sealed and ready to fit, no acid handling.
Will it fit your current battery tray?
The Exide ET9B-BS is made in the 150 × 70 × 105 mm format and weighs 2.90 kg. The positive terminal on the left decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. It uses a B0 hold-down and M04 terminals, the system that anchors and connects it in the vehicle. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change.
What the Exide ET9B-BS is for
The Exide ET9B-BS is a common replacement in motorcycles, scooters, quads and personal watercraft. If your bike spends the winter standing, a trickle charger stops it reaching spring flat. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 2.90 kg, M04 terminals and B0 hold-down.
The Exide ET9B-BS: Moto AGM range and AGM technology
The ET9B-BS is part of the Exide Moto AGM range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family.
In an AGM battery the electrolyte is absorbed in glass-fibre separators: there is no free liquid, it cannot spill and it can be mounted at an angle. That construction lowers internal resistance, speeds up recharging and multiplies cycle life compared with a conventional battery.
What Exide does differently
With more than a century of history, Exide Technologies manufactures automotive, marine, motorcycle and industrial batteries in Europe. Its presence as original equipment on assembly lines vouches for the quality of every reference. We guarantee that every Exide arrives new, charged and with the manufacturer's full warranty.
Warranty and coverage
The Exide ET9B-BS comes with the manufacturer's official warranty. The warranty does not cover discharge through prolonged inactivity: if the bike stands for months, use a trickle charger.
How to make it last longer
Avoid repeated cranking attempts on a cold bike for long: if it does not start on the third try, let the battery rest for a minute. Check the resting voltage before the season (above 12.6 V on a charged battery) and make sure the terminals are clean and tight.
When you get it and how to return it
Orders placed before 6:00 pm with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic Islands and the rest of the European Union allow 3 to 5 working days. You have 14 days to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships.
Data sheet
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BrandEXIDE
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ReferenceET9B-BS
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ModelEXIDE MOTO AGM 12V
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Voltage (V)12
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Length150 mm
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Width70 mm
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Height105 mm
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Weight2.90 Kgs
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TechnologyAGM
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EAN3661024033916
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Terminal layoutPositive terminal on the left
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Terminal typeM04
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JISYT9B-BS
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Hold-downB0
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Cold cranking amps (EN)110A
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Capacity (C20)8Ah (c20)
Specific References
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EAN133661024033916
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MPNET9B-BS
Codes and references Exide ET9B-BS
| Brand | Exide · see all Exide batteries |
|---|---|
| Manufacturer range | EXIDE MOTO AGM 12V |
| Manufacturer part number (MPN) | ET9B-BS |
| Also known as | ET9BBS · ET9B BS |
| EAN-13 barcode | 3661024033916 |
| Dimensions (length × width × height) | 150 × 70 × 105 mm (150x70x105) |
Exide ET9B-BS: best-selling equivalent or higher-spec batteries
The Exide ET9B-BS is interchangeable with these equivalent references: 509902008 (Varta).
| Product | Specifications | Technology | Price | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Exide
ET9B-BS
This battery
|
12V 8Ah 110A | AGM | 30,70 € | |||||||||||||||||||||
Varta
YT9B-BS
Varta equivalent |
12V 8Ah 115A | AGM | 93,10 € +62,40 € | |||||||||||||||||||||
| ||||||||||||||||||||||||
| ET9B-BS | YT9B-BS | |
|---|---|---|
| Capacity | 8 Ah | 8 Ah |
| Cold cranking (EN) | 110 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 | 30,70 € | 93,10 € |
Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. 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 Exide YT9B-BS an AGM battery and what are the benefits of AGM?
Yes: the YT9B-BS from Exide uses AGM (Absorbent Glass Mat) technology, a sealed lead-acid battery whose electrolyte soaks a glass-fibre mat. Compared with a conventional battery it withstands more charge/discharge cycles and handles heat better.
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-BS model?
As a guide, you can expect the Exide YT9B-BS 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. What weighs most: temperature (cold makes starts harder and intense heat evaporates the electrolyte), frequent short trips, the condition of the alternator and charging system, power draw while parked and maintenance.
What are the dimensions of the Exide YT9B-BS battery?
Before buying, measure the space in your motorcycle: one extra millimetre can stop the hold-down clamp from closing. The Exide YT9B-BS takes up 150×70×105 mm (length, width and height, terminals included).
What polarity does the Exide YT9B-BS battery have?
On the Exide YT9B-BS, 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.
Will the Exide YT9B-BS battery fit my motorcycle?
Three routes: the "Compatible vehicles" tab on this page, with the vehicles verified by our technical team; your number plate in the finder, from which DGT/DVLA/KBA detect model and engine; and WhatsApp, with make, model, engine and year, during business hours (Mon–Fri 10:00–13:30 and 16:30–18:00 (Spanish time, CET)). The motorcycle manufacturer's specifications always take priority over our tables.
Which batteries are equivalent to the Exide YT9B-BS?
The "Equivalents" section of this page gathers the recommended options with equivalent performance. A direct equivalent needs what this YT9B-BS offers: 150×70×105 mm, positive on the left, the same Ah and CCA and AGM technology.
Exide ET9B-BS or Varta YT9B-BS: which one to choose?
Same JIS code YT9B-BS: it fits the same bike as the ET9B-BS, with the same size and polarity. Compared with the ET9B-BS it has 5 A of cold cranking more. It costs 62,40 € more. If you want to save or the ET9B-BS is out of stock, it is the safe alternative: same dimensions, same polarity and official warranty.
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