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Fulbat FB12A-B · Motorcycle battery 12V 12.6Ah 155A

Specifications

BrandFULBAT
Part numberFB12A-B
Voltage (V)12V
Capacity (C20)12.60Ah
Capacity (C10)12Ah (c10)
Cold cranking amps (EN)155A
TechnologyLead-acid
Length134mm
Width80mm
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Fulbat FB12A-B 12V 12,6Ah 155A 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
12,6 Ah C20
Cold cranking
155 A EN-1
Dimensions
134×80×160 mm
Technology
Lead-acid
Polarity
Positive on the left

Where it fits: the Fulbat FB12A-B is one of our motorcycle batteries, belongs to our Fulbat batteries and by capacity it sits among our 12Ah batteries.

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Motorcycle battery Fulbat FB12A-B 12.6Ah 155A 12V

12VVoltage
12.6AhCapacity
155ACold cranking

The Fulbat FB12A-B is a motorcycle battery with 12.6 Ah and 155 A of cold cranking current (EN), designed for motorcycles, scooters, quads and personal watercraft. It measures 134 × 80 × 160 mm and the positive terminal on the left, the format sought by anyone replacing a 12.6 Ah battery in motorcycles.

  • Same JIS code as the original battery: fits first time.
  • Conventional lead-acid: the most proven and economical technology.
  • Energetic cranking for high-compression engines.
  • Resistant to the vibration typical of two wheels.

What the Fulbat FB12A-B is for

With 12.6 Ah, the Fulbat FB12A-B covers the starting of motorcycles, scooters, quads and personal watercraft. The JIS code on your current battery label is the safest way to confirm equivalence.

Dimensions, polarity and mounting

The Fulbat FB12A-B is made in the 134 × 80 × 160 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. 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.

Technology inside the Fulbat FB12A-B

The FB12A-B 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.

Conventional lead-acid is the benchmark against which other technologies are compared: good cranking current, great tolerance to alternator charging and the best price per amp-hour.

Fulbat: the maker behind the FB12A-B

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. We guarantee that every Fulbat arrives new, charged and with the manufacturer's full warranty.

Manufacturer's warranty

The Fulbat FB12A-B 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

On batteries with filler caps, check the electrolyte level and top up only with distilled water. 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

Order before 6:00 pm with stock available and it leaves today: mainland Spain and Portugal receive it in 24-48 working hours, the islands and the rest of the EU in 3 to 5 days. You have 14 days to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email.

  • Reference
    BCOM-FULBAT-FB12A-B

Data sheet

  • Brand
    FULBAT
  • Model
    FULBAT Motorcycle DRY
  • Voltage (V)
    12V
  • Length
    134mm
  • Width
    80mm
  • Height
    160mm
  • Technology
    Lead-acid
  • Terminal layout
    Positive left
  • Cold cranking amps (EN)
    155A
  • Capacity (C20)
    12.60Ah
  • Capacity (C10)
    12Ah (c10)

Specific References

  • MPN
    FB12A-B

Download

Datasheet Fulbat FB12A-B

PDF datasheet of the Fulbat FB12A-B battery

Download (332.89KB)

Comparison: Fulbat FB12A-B vs equivalents — alternatives with the same dimensions, Ah and CCA

Higher-technology alternatives that can replace it: FB12A-A/B GEL (Fulbat).

Product Specifications Technology Price
Fulbat FB12A-B Fulbat FB12A-B This battery 12V 12.6Ah 155A Lead-acid
Fulbat FB12A-A/B GEL Fulbat FB12A-A/B GEL 12V 12.6Ah 155A Gel Upgrade €81.26

Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.

Other 12Ah batteries

We stock 48 models of 12 Ah to compare by price, technology and cold cranking: see all 12Ah batteries.

Recommended accessories — complement the Fulbat FB12A-B with a charger or tester

Frequently asked questions

How should this motorcycle battery be charged?

With a 12 V motorcycle charger delivering at most 10 % of its capacity: 1.3 A for its 12.6 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?

Yes: it is a conventional lead-acid battery. Check the electrolyte level from time to time and, if it drops, top up with distilled water to the mark.

What is the service life of the FB12A-B model?

Expected lifespan of the Fulbat FB12A-B is 3 to 5 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 FB12A-B battery?

Dimensions (length × width × height) are 134×80×160 mm — also written as 134x80x160 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 FB12A-B 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 Fulbat FB12A-B 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 FB12A-B typically fits a wide range of European vehicles thanks to its standard DIN case format.

Which batteries are equivalent to the Fulbat FB12A-B?

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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