Exide ETZ14-BS · Motorcycle battery 12V 11Ah 205A AGM
Specifications
| Brand | EXIDE |
|---|---|
| Part number | ETZ14-BS |
| Voltage (V) | 12 |
| Capacity (C20) | 11Ah (c20) |
| Cold cranking amps (EN) | 205A |
| Technology | AGM |
| Length | 150.00 cm |
| Width | 87.00 cm |
| Height | 110.00 cm |
Exide ETZ14-BS 12V 11Ah 205A is a motorcycle starter battery with standard JIS code (the one on your bike's original label). Ready to use, sealed and vibration-resistant. Fits any model that takes the same JIS reference — the code your mechanic recognises at a glance.
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

Motorcycle battery Exide ETZ14-BS Moto AGM 11Ah 205A 12V
The Exide ETZ14-BS motorcycle battery is rated at 12 V, 11 Ah and 205 A of cold cranking current (EN) from the Moto AGM range, and is designed for motorcycles, scooters, quads and personal watercraft. It measures 150 × 87 × 110 mm and the positive terminal on the left, the format sought by anyone replacing a 11 Ah battery in motorcycles.
In short: the Exide ETZ14-BS (11 Ah, 205 A, 150 × 90 × 110 mm, positive terminal on the left). Verified equivalent alternatives: Exide AGM12-11 and Motobatt MBTZ14S.
- Energetic cranking for high-compression engines.
- Resistant to the vibration typical of two wheels.
- Same JIS code as the original battery: fits first time.
- AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
What the Exide ETZ14-BS is for
Designed for motorcycles, scooters, quads and personal watercraft, the Exide ETZ14-BS replaces the original battery of bikes that use this code or format. Check the position of the positive terminal before ordering. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 4.10 kg, M04 terminals and B0 hold-down.
Size, terminals and hold-down of the Exide ETZ14-BS
In terms of format, the Exide ETZ14-BS measures 150 × 87 × 110 mm (length × width × height) and weighs 4.10 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. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.
The Exide ETZ14-BS: Moto AGM range and AGM technology
The ETZ14-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.
AGM means the acid is held in a glass mat instead of floating free. That is why the battery can be installed in the cabin without gases, survives more cycles and recovers its charge quickly.
Why choose Exide batteries
Exide is one of the world's largest battery manufacturers and an original-equipment supplier to many car makers. Its European plants produce starter, industrial and leisure batteries under original-equipment quality controls. All the Exide batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.
Warranty and coverage
The Exide ETZ14-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.
Care and maintenance
Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. If the bike spends the winter standing, connect a trickle charger: deep discharge through inactivity is the first cause of premature failure.
Shipping, delivery and returns
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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ReferenceETZ14-BS
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ModelEXIDE MOTO AGM 12V
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Voltage (V)12
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Length150.00 cm
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Width87.00 cm
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Height110.00 cm
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Weight4.10 Kgs
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TechnologyAGM
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EAN3661024033923
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Terminal layoutPositive terminal on the left
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Terminal typeM04
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Hold-downB0
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Cold cranking amps (EN)205A
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Capacity (C20)11Ah (c20)
Specific References
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EAN133661024033923
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MPNETZ14-BS
Codes and references Exide ETZ14-BS
| Brand | Exide · see all Exide batteries |
|---|---|
| Manufacturer range | EXIDE MOTO AGM 12V |
| Manufacturer part number (MPN) | ETZ14-BS |
| Also known as | ETZ14BS · ETZ14 BS |
| EAN-13 barcode | 3661024033923 |
| Dimensions (length × width × height) | 150 × 90 × 110 mm (150x90x110) |
| Not to be confused with | FTZ14S (different version) |
Comparison: Exide ETZ14-BS vs equivalents
The Exide ETZ14-BS is interchangeable with these equivalent references: AGM12-11 (Exide), MBTZ14S (Motobatt), 511902023 (Varta).
| Product | Specifications | Technology | Price |
|---|---|---|---|
|
|
12V 11Ah 205A | AGM | €43.30 |
|
|
12V 11Ah 205A | AGM | €63.70 |
|
|
12V 11Ah 190A | Quadflex | €156.30 |
|
|
12V 11Ah 230A | AGM | €47.30 |
Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.
Recommended accessories
Frequently asked questions
Is the Exide ETZ14-BS an AGM battery and what are the benefits of AGM?
Yes. The ETZ14-BS from Exide 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 do I fit the ETZ14-BS model in my motorcycle?
In most motorcycles it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on our blog. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — with positive on the left match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On motorcycles with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.
How long does the Exide ETZ14-BS battery last?
Expected lifespan of the Exide ETZ14-BS is 5 to 8 years in mild-climate motorcycle use with Start-Stop. 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 Exide ETZ14-BS battery?
Dimensions (length × width × height) are 150×90×110 mm — also written as 150x90x110 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 ETZ14-BS 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 Exide ETZ14-BS 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 16:40–18:00 (Spanish time, CET)). The ETZ14-BS typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which batteries are equivalent to the Exide ETZ14-BS?
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.
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