Fulbat 12N5.5-3B GEL · Motorcycle battery 12V 5.8Ah 70A GEL
Specifications
| Brand | FULBAT |
|---|---|
| Part number | 12N5.5-3B GEL |
| Voltage (V) | 12V |
| Capacity (C20) | 5.80Ah |
| Capacity (C10) | 5.50Ah (c10) |
| Cold cranking amps (EN) | 70A |
| Technology | GEL |
| Length | 135mm |
| Width | 60mm |
Fulbat 12N5.5-3B GEL 12V 5,8Ah 70A 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

Motorcycle battery Fulbat 12N5.5-3B 5.8Ah 70A 12V
The Fulbat 12N5.5-3B is a motorcycle battery with 5.8 Ah and 70 A of cold cranking current (EN), designed for motorcycles, scooters, quads and personal watercraft. Its 135 × 60 × 130 mm and the positive terminal on the right make it the exact replacement for the 5.8 Ah battery fitted as standard to many motorcycles.
- Sealed and ready to fit, no acid handling.
- GEL: excellent resistance to deep discharge and long cycle life.
- Compact and lightweight format.
- Holds its charge through winter storage.
What the Fulbat 12N5.5-3B is for
Designed for motorcycles, scooters, quads and personal watercraft, the Fulbat 12N5.5-3B replaces the original battery of bikes that use this code or format. Check the position of the positive terminal before ordering.
Will it fit your current battery tray?
In terms of format, the Fulbat 12N5.5-3B measures 135 × 60 × 130 mm (length × width × height). The positive terminal on the right 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 12N5.5-3B
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 12N5.5-3B
Fulbat builds the 12N5.5-3B to the same standards as the rest of its catalogue; what changes between references is capacity, format and terminal position.
A GEL battery is the choice when cycle resistance and safety matter most: no gases, no liquid and thousands of partial discharges in its lifetime.
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. GEL batteries need lower charging voltages: always use a charger with a GEL mode so as not to damage the electrolyte.
Warranty and coverage
The Fulbat 12N5.5-3B 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
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.
Data sheet
-
BrandFULBAT
-
ModelFULBAT Motorcycle GEL
-
Voltage (V)12V
-
Length135mm
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Width60mm
-
Height130mm
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TechnologyGEL
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Terminal layoutPositive right
-
Cold cranking amps (EN)70A
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Capacity (C20)5.80Ah
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Capacity (C10)5.50Ah (c10)
Specific References
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MPN12N5.5-3B GEL
Recommended accessories
Frequently asked questions
How do I fit the 12N5.5-3B 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 long does the Fulbat 12N5.5-3B GEL battery last?
Expected lifespan of the Fulbat 12N5.5-3B 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 dimensions of the Fulbat 12N5.5-3B GEL battery?
Dimensions (length × width × height) are 135×60×130 mm — also written as 135x60x130 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 12N5.5-3B 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 12N5.5-3B GEL typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which batteries are equivalent to the Fulbat 12N5.5-3B GEL?
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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