Fulbat FTX20A-BS · Motorcycle battery 12V 18.9Ah 270A AGM
Motorcycle battery Fulbat FTX20A-BS 12V 18.9Ah 270A AGM images
Specifications
| Brand | FULBAT |
|---|---|
| Part number | FTX20A-BS |
| Voltage (V) | 12V |
| Capacity (C20) | 18.90Ah |
| Capacity (C10) | 18Ah (c10) |
| Cold cranking amps (EN) | 270A |
| Technology | AGM |
| Length | 150mm |
| Width | 87mm |
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Fulbat FTX20A-BS 12V 18,9Ah 270A 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
Where it fits: the Fulbat FTX20A-BS is one of our motorcycle batteries, belongs to our Fulbat batteries and by capacity it sits among our 18Ah batteries.
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Motorcycle battery Fulbat FTX20A-BS 18.9Ah 270A 12V
The Fulbat FTX20A-BS motorcycle battery is rated at 12 V, 18.9 Ah and 270 A of cold cranking current (EN), and is designed for motorcycles, scooters, quads and personal watercraft. Measuring 150 × 87 × 161 mm and the positive terminal on the left, it is the direct replacement for motorcycles fitted from the factory with a 18.9 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.
What the Fulbat FTX20A-BS is for
Designed for motorcycles, scooters, quads and personal watercraft, the Fulbat FTX20A-BS replaces the original battery of bikes that use this code or format. Check the position of the positive terminal before ordering.
Size, terminals and hold-down of the Fulbat FTX20A-BS
The Fulbat FTX20A-BS is made in the 150 × 87 × 161 mm format. 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. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.
Fulbat: the maker behind the FTX20A-BS
Fulbat has manufactured in France since 1978 and specialises in motorcycles and light vehicles. Its catalogue is short and clear, covers almost the whole fleet and works only with sealed, leak-free batteries. All the Fulbat batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.
Technology inside the Fulbat FTX20A-BS
The FTX20A-BS is one of the Fulbat references for this type of use; it shares the same manufacturing and quality-control criteria as the rest of the brand's catalogue.
AGM (Absorbent Glass Mat) technology seals the electrolyte in glass microfibre. The result is a maintenance-free battery that is highly vibration-resistant and able to withstand deep discharges that would ruin a classic lead-acid battery.
Usage and maintenance tips
Check the resting voltage before the season (above 12.6 V on a charged battery) and make sure the terminals are clean and tight. If the bike spends the winter standing, connect a trickle charger: deep discharge through inactivity is the first cause of premature failure.
Warranty and coverage
The Fulbat FTX20A-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.
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.
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ReferenceBCOM-FULBAT-FTX20A-BS
Data sheet
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BrandFULBAT
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ModelFULBAT Motorcycle MF
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Voltage (V)12V
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Length150mm
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Width87mm
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Height161mm
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TechnologyAGM
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Terminal layoutPositive left
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Cold cranking amps (EN)270A
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Capacity (C20)18.90Ah
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Capacity (C10)18Ah (c10)
Specific References
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MPNFTX20A-BS
Other 18Ah batteries
We stock 28 models of 18 Ah to compare by price, technology and cold cranking: see all 18Ah batteries. Same size (150 × 87 × 161 mm): batteries of 150 × 87 × 161 mm.
Recommended accessories
Frequently asked questions
Is the Fulbat FTX20A-BS an AGM battery and what are the benefits of AGM?
Yes. The FTX20A-BS from Fulbat 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: 1.9 A for its 18.9 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 Fulbat FTX20A-BS battery last?
Expected lifespan of the Fulbat FTX20A-BS 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 Fulbat FTX20A-BS battery?
Dimensions (length × width × height) are 150×87×161 mm — also written as 150x87x161 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.
What polarity does the Fulbat FTX20A-BS battery have?
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 Fulbat FTX20A-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 FTX20A-BS typically fits a wide range of European vehicles thanks to its standard DIN case format.
What are the equivalents of the FTX20A-BS model?
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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