12VNominal voltage
4.2AhCapacity, 20-hour rate (C20)
56ACold cranking current (EN)
Quick answer: The battery on this page is the Fulbat FB4L-B, aimed at motorcycles and quads. Capacity of 4.2Ah and 56A for cold starts are the numbers to compare.
Fulbat FB4L-B in everyday use
A jet ski on a trailer spends months in the garage. Check the fuse holder near the battery when the bike seems dead. A weak horn is often the first sign of a tired bike battery.
Measurements, ratings and codes
MakeFulbat
Model codeFB4L-B
RangeFULBAT Motorcycle DRY
Used formotorcycles and quads
Nominal voltage12V
Capacity, 20-hour rate (C20)4.2Ah
Cold cranking current (EN)56A
TechnologyLead-acid
Size L × W × H120 × 70 × 92 mm
Battery weight1.6 kg
Terminal polaritypositive on the right-hand side
How lead-acid batteries work and how to look after them
Some lead-acid batteries have removable caps, others are sealed for life. Trucks and tractors often rely on robust flooded batteries. Pour in only distilled water, and only once the charge has finished.
Common questions about the Fulbat FB4L-B
Is lead-acid the same as the battery I have now?
Look at the sticker on the battery you have now. If it also says lead-acid, this is a like-for-like choice. If not, check your vehicle or system can handle the change.
Is the Fulbat FB4L-B part of a wider range?
It belongs to FULBAT Motorcycle DRY. If you need a different size with the same construction, look within that range.
Can I use the Fulbat FB4L-B instead of my old battery?
The safest test is a direct comparison: same voltage, same or slightly higher capacity, same case size and the same terminal orientation. Your owner's manual usually lists the original values.
Buying the Fulbat FB4L-B online
If the code moulded into your old battery says Fulbat FB4L-B, you have found its twin. A snug fit stops the battery rattling on rough roads. Once the code and size match, the order at baterias.online takes a couple of minutes.
4.2Ah makes it a smaller battery, good for light electrical loads.
See also
You will find this battery in the motorcycles and quads section of baterias.online, ready to order. Note the fitting date somewhere you will find it again.
Check before ordering
- ✓ With 4.2Ah of capacity, hold it up to the figure on the outgoing unit or in your equipment manual.
- ✓ EN cranking amps of 56A. If you are unsure of your requirement, the vehicle handbook usually states it.
- ✓ Set your charger to lead-acid before the first charge.
