Fulbat

Fulbat FB4L-B · Motorcycle battery 12V 4.2Ah 56A

Reference: BOL-FULBAT-FB4L-B

Fulbat FB4L-B: motorcycle battery with 12 V, 4.2 Ah and 56 A cold cranking current, measuring 120 × 70 × 92 mm, with the positive terminal on the right.

Fulbat FB4L-B · Motorcycle battery 12V 4.2Ah 56A – main view
Voltage
12V
Capacity
4.2Ah
Cold cranking amps (EN)
56A
Technology
Lead-acid
Dimensions (L × W × H)
120 × 70 × 92 mm
Polarity
Positive terminal on the right
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For Spain, Portugal, France, Germany, Italy, Belgium and the Netherlands you see the exact cost before paying. For the rest of Europe we send you a shipping quote, with no obligation. 14 days to return your order
If it does not fit, you have 14 days from delivery to return it unused.

Does it fit your vehicle? Check by number plate or VIN

Enter your number plate or chassis number (VIN): we check whether this battery is compatible with your vehicle.

Where the Fulbat FB4L-B fits

The Fulbat FB4L-B is made for motorcycles, scooters and quads. With 4.2 Ah, the FB4L-B suits motorcycles and scooters that had a battery of that capacity.

At 4.2 Ah it is a small battery, typical of 50 to 125 cc scooters and light motorcycles. The FB4L-B belongs to the Fulbat FULBAT Motorcycle DRY range. More Fulbat batteries

Fulbat FB4L-B codes and part numbers

Shops, garages and catalogues identify the FB4L-B with these codes:

Commercial referenceFB4L-B
Not to be confused withFulbat FB3L-B (3.2 Ah, 32 A), Fulbat FB5L-B (5.3 Ah, 65 A), Fulbat FB9L-B (9.5 Ah, 115 A)

Equivalents and alternatives to the Fulbat FB4L-B

No other reference in the catalogue fully matches the dimensions and polarity of the FB4L-B; you will find the closest ones among our motorcycle batteries.

Fulbat FB4L-B vs FTX4L-BS and FTX5L-BS: differences

The real differences between the FB4L-B and the closest Fulbat models:

ModelCapacityCold cranking (EN)Dimensions (mm)PositiveWeight
Fulbat FB4L-B (this one)4.2 Ah56 A120 × 70 × 92right1.6 kg
Fulbat FTX4L-BS / FTZ5S-BS4.2 Ah50 A113 × 70 × 85right1.43 kg
Fulbat FTX5L-BS4.2 Ah80 A113 × 70 × 105right1.78 kg
  • Fulbat FTX4L-BS / FTZ5S-BS: the same capacity, 6 A less cranking power, a different case (113 × 70 × 85 mm), AGM technology.
  • Fulbat FTX5L-BS: the same capacity, 24 A more cranking power, a different case (113 × 70 × 105 mm), AGM technology.

Check this before ordering the Fulbat FB4L-B

  • Check the EN amps on your battery: if it says 56 A or less, the FB4L-B covers your engine.
  • Capacity of the FB4L-B: 4.2 Ah; the same as your current battery or slightly more is fine.
  • The FB4L-B has the positive terminal on the right: compare it with your current battery.
  • Length, width and height of the FB4L-B: 120 × 70 × 92 mm.

Frequently asked questions about the Fulbat FB4L-B

Fulbat FB4L-B or FTX4L-BS / FTZ5S-BS?

Compared with the FB4L-B, the Fulbat FTX4L-BS / FTZ5S-BS has 6 A less cranking power and AGM technology. The FB4L-B cranks harder; the FTX4L-BS / FTZ5S-BS is only a good option if your original battery says 50 A or less. Mind the space: the FTX4L-BS / FTZ5S-BS measures 113 × 70 × 85 mm.

How much does the Fulbat FB4L-B weigh?

The FB4L-B weighs 1.6 kg. For reference, the Fulbat FTX4L-BS / FTZ5S-BS (4.2 Ah) weighs 1.43 kg.

Which side is the positive terminal on the Fulbat FB4L-B?

The FB4L-B has the positive terminal on the right, looking at the battery from its long side with the terminals closest to you.

Inside the FB4L-B: lead-acid technology

Inside, the FB4L-B is classic lead-acid: liquid electrolyte and lead plates. It is a robust, well-known technology with a good capacity-to-price ratio, and still the basis of most cars, trucks and traction equipment.

Keep comparing: alternatives to the FB4L-B

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