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Fulbat 6N4B-2A Motorcycle DRY · Battery 6V 4.2Ah 35A

Specifications

BrandFULBAT
Part number6N4B-2A
Voltage (V)6V
Capacity (C20)4.20Ah
Capacity (C10)4Ah (c10)
Cold cranking amps (EN)35A
TechnologyLead-acid
Length102mm
Width48mm
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Fulbat 6N4B-2A 6V 4,2Ah 35A 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
6 V
Capacity
4,2 Ah C20
Cold cranking
35 A EN-1
Dimensions
102×48×96 mm
Technology
Lead-acid
Polarity
Positive on the left

Where it fits: the Fulbat 6N4B-2A is one of our motorcycle batteries, belongs to our Fulbat batteries and by capacity it sits among our 4Ah batteries.

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Motorcycle battery Fulbat 6N4B-2A 4.2Ah 35A 6V

6VVoltage
4.2AhCapacity
35ACold cranking

The Fulbat 6N4B-2A is a motorcycle battery with 4.2 Ah and 35 A of cold cranking current (EN), designed for motorcycles, scooters, quads and personal watercraft. Measuring 102 × 48 × 96 mm and the positive terminal on the left, it is the direct replacement for motorcycles fitted from the factory with a 4.2 Ah battery of this format.

  • Good balance of capacity, cranking power and price.
  • Sealed and ready to fit, no acid handling.
  • Holds its charge through winter storage.
  • Compact and lightweight format.

What the Fulbat 6N4B-2A is for

Designed for motorcycles, scooters, quads and personal watercraft, the Fulbat 6N4B-2A replaces the original battery of bikes that use this code or format. Check the position of the positive terminal before ordering.

Dimensions, polarity and mounting

The Fulbat 6N4B-2A is made in the 102 × 48 × 96 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 6N4B-2A

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. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.

Technology inside the Fulbat 6N4B-2A

Within the Fulbat catalogue, the 6N4B-2A is the 4.2 Ah model designed for this application.

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.

Care and maintenance

Check the resting voltage before the season (above 12.6 V on a charged battery) and make sure the terminals are clean and tight. On batteries with filler caps, check the electrolyte level and top up only with distilled water.

Warranty and coverage

The Fulbat 6N4B-2A 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.

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-6N4B-2A

Data sheet

  • Brand
    FULBAT
  • Model
    FULBAT Motorcycle DRY
  • Voltage (V)
    6V
  • Length
    102mm
  • Width
    48mm
  • Height
    96mm
  • Technology
    Lead-acid
  • Terminal layout
    Positive left
  • Cold cranking amps (EN)
    35A
  • Capacity (C20)
    4.20Ah
  • Capacity (C10)
    4Ah (c10)

Specific References

  • MPN
    6N4B-2A

Download

Datasheet Fulbat 6N4B-2A

PDF datasheet of the Fulbat 6N4B-2A battery

Download (327.2KB)

Other 4Ah batteries: We stock 21 models of 4 Ah to compare by price, technology and cold cranking: see all 4Ah batteries.

Recommended accessories — complement the Fulbat 6N4B-2A with a charger or tester

Frequently asked questions

How should this motorcycle battery be charged?

With a 6 V motorcycle charger delivering at most 10 % of its capacity: 0.5 A for its 4.2 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 6N4B-2A model?

As a guide, you can expect the Fulbat 6N4B-2A to last 3 to 5 years, keeping it charged when the bike is not in use, although the real figure may be higher or lower. Actual lifespan varies with climate (cold starts, heat evaporating the electrolyte), with usage and short journeys, with the condition of the alternator and charging system, with power draw while parked and with maintenance.

What are the measurements of the 6N4B-2A model?

Length × width × height: 102x48x96 mm. Height is measured to the top of the terminals. Measure your motorcycle's battery tray first; if the battery exceeds it by even a millimetre, the hold-down clamp may not close.

What polarity does the Fulbat 6N4B-2A battery have?

On the Fulbat 6N4B-2A, 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.

Does this battery fit my motorcycle?

The quickest way is to enter your number plate in the finder: DGT/DVLA/KBA detect model and engine. You can also look at the "Compatible vehicles" tab, verified by our technical team, or send us make, model, engine and year on WhatsApp; we answer during business hours (Mon–Fri 10:00–13:30 and 16:30–18:00 (Spanish time, CET)). If our table and the motorcycle handbook disagree, go with what the manufacturer says.

Which batteries are equivalent to the Fulbat 6N4B-2A?

See the "Equivalents" section of this page for the recommended options at the same performance level. To replace the Fulbat 6N4B-2A without modifications, the other battery must be identical in size, polarity, Ah and CCA.


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