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Fulbat B49-6 · Motorcycle battery 6V 8.4Ah 80A

Specifications

BrandFULBAT
Part numberB49-6
Voltage (V)6V
Capacity (C20)8.40Ah
Capacity (C10)8Ah (c10)
Cold cranking amps (EN)80A
TechnologyLead-acid
Length91mm
Width83mm
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Fulbat B49-6 6V 8,4Ah 80A 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
8,4 Ah C20
Cold cranking
80 A EN-1
Dimensions
91×83×160 mm
Technology
Lead-acid
Polarity
Positive on the left
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Motorcycle battery Fulbat B49-6 8.4Ah 80A 6V

6VVoltage
8.4AhCapacity
80ACold cranking

The Fulbat B49-6 is a motorcycle battery with 8.4 Ah and 80 A of cold cranking current (EN), designed for motorcycles, scooters, quads and personal watercraft. It replaces the original battery without adaptation in motorcycles with a 91 × 83 × 160 mm format: same 8.4 Ah capacity and the positive terminal on the left.

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

What the Fulbat B49-6 is for

With 8.4 Ah, the Fulbat B49-6 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.

Size, terminals and hold-down of the Fulbat B49-6

It has external dimensions of 91 × 83 × 160 mm. 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. Before replacing it, measure your current battery tray: if all three dimensions and the terminal positions match, the swap is direct and needs no adapters.

Fulbat: the maker behind the B49-6

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 B49-6

Within the Fulbat catalogue, the B49-6 is the 8.4 Ah model designed for this application.

The conventional lead-acid battery remains the most widespread technology thanks to its balance of capacity, cranking current and price. Well maintained and kept charged, it offers years of reliable service in vehicles without Start-Stop.

Usage and maintenance tips

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

Official warranty

The Fulbat B49-6 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.

Delivery times and returns

Same-day dispatch from our warehouse for in-stock orders placed before 6:00 pm: 24-48 working hours in mainland Spain and Portugal, 3 to 5 days in the islands and the rest of Europe. Returns are accepted for 14 days if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email.

  • Reference
    BCOM-FULBAT-B49-6

Data sheet

  • Brand
    FULBAT
  • Model
    FULBAT Motorcycle DRY
  • Voltage (V)
    6V
  • Length
    91mm
  • Width
    83mm
  • Height
    160mm
  • Technology
    Lead-acid
  • Terminal layout
    Positive left
  • Cold cranking amps (EN)
    80A
  • Capacity (C20)
    8.40Ah
  • Capacity (C10)
    8Ah (c10)

Specific References

  • MPN
    B49-6

Comparison: Fulbat B49-6 vs equivalents — alternatives with the same dimensions, Ah and CCA

Higher-technology alternatives that can replace it: B49-6 GEL (Fulbat).

Product Specifications Technology Price
Fulbat B49-6 Fulbat B49-6 This battery 6V 8.4Ah 80A Lead-acid
Fulbat B49-6 GEL Fulbat B49-6 GEL 6V 10.5Ah 80A Gel Upgrade €42.36

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

Recommended accessories — complement the Fulbat B49-6 with a charger or tester

Frequently asked questions

How is the Fulbat B49-6 battery installed in the vehicle?

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.

What is the service life of the B49-6 model?

Expected lifespan of the Fulbat B49-6 is 4 to 6 years in regular motorcycle use without 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 size is this battery?

Dimensions (length × width × height) are 91×83×160 mm — also written as 91x83x160 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.

Which side is the positive terminal on this battery?

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 B49-6 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 B49-6 typically fits a wide range of European vehicles thanks to its standard DIN case format.

What are the equivalents of the B49-6 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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