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Fulbat FT12B-4 GEL · Motorcycle battery 12V 10.5Ah 210A GEL

Specifications

BrandFULBAT
Part numberFT12B-4 GEL
Voltage (V)12V
Capacity (C20)10.50Ah
Capacity (C10)10Ah (c10)
Cold cranking amps (EN)210A
TechnologyGEL
Length150mm
Width69mm
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Price: €68.53
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  • 14-day returns
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Brand: Fulbat batteries Part number: FT12B-4 GEL

Fulbat FT12B-4 GEL 12V 10,5Ah 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
Voltage
12 V
Capacity
10,5 Ah C20
Cold cranking
210 A EN-1
Dimensions
150×69×130 mm
Technology
GEL
Polarity
Positive on the left
Logo Fulbat

Motorcycle battery Fulbat FT12B-4 10.5Ah 210A 12V

12VVoltage
10.5AhCapacity
210ACold cranking

The Fulbat FT12B-4 motorcycle battery is rated at 12 V, 10.5 Ah and 210 A of cold cranking current (EN), and is designed for motorcycles, scooters, quads and personal watercraft. Its 150 × 69 × 130 mm and the positive terminal on the left make it the exact replacement for the 10.5 Ah battery fitted as standard to many motorcycles.

  • Compact and lightweight format.
  • Holds its charge through winter storage.
  • Sealed and ready to fit, no acid handling.
  • GEL: excellent resistance to deep discharge and long cycle life.

Size, terminals and hold-down of the Fulbat FT12B-4

The Fulbat FT12B-4 is made in the 150 × 69 × 130 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.

What the Fulbat FT12B-4 is for

The Fulbat FT12B-4 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.

Technology inside the Fulbat FT12B-4

Within the Fulbat catalogue, the FT12B-4 is the 10.5 Ah model designed for this application.

GEL technology fixes the acid in a solid gel. That removes maintenance and leaks and gives very long cycle life, in exchange for slightly slower recharging and lower peak current than an AGM.

What Fulbat does differently

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.

Warranty and coverage

The Fulbat FT12B-4 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

GEL batteries need lower charging voltages: always use a charger with a GEL mode so as not to damage the electrolyte. 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.

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.

  • Reference
    BCOM-FULBAT-FT12B-4 GEL

Data sheet

  • Brand
    FULBAT
  • Model
    FULBAT Motorcycle GEL
  • Voltage (V)
    12V
  • Length
    150mm
  • Width
    69mm
  • Height
    130mm
  • Technology
    GEL
  • Terminal layout
    Positive left
  • Cold cranking amps (EN)
    210A
  • Capacity (C20)
    10.50Ah
  • Capacity (C10)
    10Ah (c10)

Specific References

  • MPN
    FT12B-4 GEL

Recommended accessories — complement the Fulbat FT12B-4 GEL with a charger or tester

Frequently asked questions

How do I fit the FT12B-4 GEL 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 — 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 many years does this battery last?

Expected lifespan of the Fulbat FT12B-4 GEL is 4 to 7 years in regular use (depends on technology and climate). 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 measurements of the FT12B-4 GEL model?

Dimensions (length × width × height) are 150×69×130 mm — also written as 150x69x130 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.

Is the FT12B-4 GEL valid for my vehicle?

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 FT12B-4 GEL typically fits a wide range of European vehicles thanks to its standard DIN case format.

What are the equivalents of the FT12B-4 GEL 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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