Fulbat 6N4-2A/A-4 GEL · Motorcycle battery 6V 4.2Ah 25A GEL
Specifications
| Brand | FULBAT |
|---|---|
| Part number | 6N4-2A/A-4 GEL |
| Voltage (V) | 6V |
| Capacity (C20) | 4.20Ah |
| Capacity (C10) | 4Ah (c10) |
| Technology | GEL |
| Length | 71mm |
| Width | 71mm |
| Height | 93mm |
€18.79
VAT included
Fulbat 6N4-2A/A-4 GEL 6V 4,2Ah 25A is a motorcycle starter battery with standard JIS code (the one on your bike's original label). Ready to use, sealed and vibration-resistant. Fits any model that takes the same JIS reference — the code your mechanic recognises at a glance.
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
Cold cranking
25 A
Dimensions
71×71×93 mm
Technology
GEL
Polarity
Positive on the right
Motorcycle battery Fulbat 6N4-2A/A-4 4.2Ah 25A 6V
6VVoltage
4.2AhCapacity
25ACold cranking
With 4.2 Ah at 6 V and 25 A of cold cranking current (EN), the Fulbat 6N4-2A/A-4 with GEL technology replaces the original battery of motorcycles, scooters, quads and personal watercraft. It measures 71 × 71 × 93 mm and the positive terminal on the right, the format sought by anyone replacing a 4.2 Ah battery in motorcycles.
- Energetic cranking for high-compression engines.
- Resistant to the vibration typical of two wheels.
- Same JIS code as the original battery: fits first time.
- GEL technology: gelled electrolyte, fully sealed and maintenance-free.
What the Fulbat 6N4-2A/A-4 is for
Designed for motorcycles, scooters, quads and personal watercraft, the Fulbat 6N4-2A/A-4 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 6N4-2A/A-4 measures 71 × 71 × 93 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.
Technology inside the Fulbat 6N4-2A/A-4
Within the Fulbat catalogue, the 6N4-2A/A-4 is the 4.2 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
French brand Fulbat is a European reference in motorcycle, garden and leisure batteries: compact ranges, clear JIS codes and a consistent quality that workshops know well. We guarantee that every Fulbat arrives new, charged and with the manufacturer's full warranty.
Official warranty
The Fulbat 6N4-2A/A-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
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. Check the resting voltage before the season (above 12.6 V on a charged battery) and make sure the terminals are clean and tight.
When you get it and how to return it
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.
BCOM-FULBAT-6N4-2A/A-4 GEL
Data sheet
- Brand
- FULBAT
- Model
- FULBAT Motorcycle GEL
- Voltage (V)
- 6V
- Length
- 71mm
- Width
- 71mm
- Height
- 93mm
- Technology
- GEL
- Terminal layout
- Positive right
- Cold cranking amps (EN)
- 25A
- Capacity (C20)
- 4.20Ah
- Capacity (C10)
- 4Ah (c10)
Specific References
- MPN
- 6N4-2A/A-4 GEL
Recommended accessories
How to change the battery
Guide to replace your motorcycle battery in 10-15 minutes. Motorcycle batteries are light (2-5 kg) and usually need an 8 mm wrench.
Step 1. Prepare the vehicle
Park on a flat surface, switch off the engine and remove the key. Make sure all lights and electrical accessories are off. Wait 1-2 minutes before starting.
Step 2. Locate the battery compartment
On motorcycles it is usually under the seat, in the rear cowl or behind a side panel. Check the manual — access varies a lot between models.
Step 3. Disconnect the negative (−) terminal
Use the 10 mm wrench to loosen the negative cable nut (black, marked −) and remove the cable from the post. Move it aside so it cannot touch any bodywork.
Step 4. Disconnect the positive (+) terminal
Repeat with the positive cable (red, marked +). Important: never let a terminal touch metal of the car while the other is still connected.
Step 5. Remove the old battery
Loosen the hold-down clamp or the straps that secure it. Lift the battery carefully — typical weight 2-5 kg. Check the terminals are not corroded before fitting the new one.
Step 6. Install the new battery
Place the battery in the same orientation as the old one (positive terminal on the same side). Tighten the hold-down clamp firmly.
Step 7. Connect the cables
Connect the positive (+) terminal first, then the negative (−). Tighten the nuts with the wrench until each terminal does not move. Apply anti-spark grease if you have any.
Step 8. Verify the engine starts
Close the bonnet. Start the engine to confirm everything works. On cars with Start-Stop or a BMS, you may need to register the battery via OBD so the alternator applies the correct charging profile.
Frequently asked questions
How do I fit the 6N4-2A/A-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 this page. 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 6N4-2A/A-4 GEL battery last?
Expected lifespan of the Fulbat 6N4-2A/A-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 6N4-2A/A-4 GEL model?
Dimensions (length × width × height) are 71×71×93 mm — also written as 71x71x93 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.
Will the Fulbat 6N4-2A/A-4 GEL 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 6N4-2A/A-4 GEL typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which interchangeable batteries are there for this one?
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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