Fulbat

Fulbat FTX5L-BS · Motorcycle battery 12V 4.2Ah 80A

Reference: BOL-FULBAT-FTX5L-BS

The Fulbat FTX5L-BS is a motorcycle battery (AGM) with 12 V, 4.2 Ah and 80 A cold cranking current, measuring 113 × 70 × 105 mm, with the positive terminal on the right.

Voltage
12V
Capacity
4.2Ah
Cold cranking amps (EN)
80A
Technology
AGM
Dimensions (L × W × H)
113 × 70 × 105 mm
Polarity
Positive terminal on the right
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The Fulbat FTX5L-BS at a glance

The Fulbat FTX5L-BS is a motorcycle starter battery: compact, vibration-resistant and with just the right power to turn the starter motor and feed the electronics. With 4.2 Ah, the FTX5L-BS 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 FTX5L-BS belongs to the Fulbat FULBAT Motorcycle MF range. See all Fulbat batteries

Fulbat FTX5L-BS codes and part numbers

Look for any of these FTX5L-BS codes on your current battery or in the manufacturer's catalogue:

Commercial referenceFTX5L-BS
Not to be confused withFulbat FTX7L-BS (6.3 Ah, 100 A)

Equivalents and alternatives to the Fulbat FTX5L-BS

As the FTX5L-BS is an AGM battery, we only list other AGM batteries with its dimensions and polarity: neither an EFB nor a conventional battery can replace it.

ModelTechnologyCapacityCold cranking (EN)Dimensions (mm)
Varta YTX5L-4 (FA)AGM4 Ah75 A113 × 70 × 105
Varta YTX5L-BSAGM4 Ah80 A114 × 71 × 106

Fulbat FTX5L-BS vs FTX4L-BS

Torn between the FTX5L-BS and another similar Fulbat? This is what changes:

ModelCapacityCold cranking (EN)Dimensions (mm)PositiveWeight
Fulbat FTX5L-BS (this one)4.2 Ah80 A113 × 70 × 105right1.78 kg
Fulbat FTX4L-BS / FTZ5S-BS4.2 Ah50 A113 × 70 × 85right1.43 kg
  • Fulbat FTX4L-BS / FTZ5S-BS: the same capacity, 30 A less cranking power, a different case (113 × 70 × 85 mm).

Before ordering the FTX5L-BS, check this

  • Length, width and height of the FTX5L-BS: 113 × 70 × 105 mm.
  • The FTX5L-BS has the positive terminal on the right: compare it with your current battery.
  • With 4.2 Ah, the FTX5L-BS replaces an original battery of that capacity or slightly less.
  • Cold cranking: 80 A (EN), equal to or higher than the original.

Frequently asked questions about the Fulbat FTX5L-BS

Fulbat FTX5L-BS or FTX4L-BS / FTZ5S-BS?

Compared with the FTX5L-BS, the Fulbat FTX4L-BS / FTZ5S-BS has 30 A less cranking power. The FTX5L-BS 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 FTX5L-BS weigh?

The FTX5L-BS weighs 1.78 kg. For reference, the Fulbat FTX4L-BS / FTZ5S-BS (4.2 Ah) weighs 1.43 kg.

Which battery is equivalent to the Fulbat FTX5L-BS?

Only other AGM batteries with its dimensions and polarity: Varta YTX5L-4 (FA) and Varta YTX5L-BS. Neither an EFB nor a conventional battery replaces the FTX5L-BS.

Which side is the positive terminal on the Fulbat FTX5L-BS?

The FTX5L-BS has the positive terminal on the right, looking at the battery from its long side with the terminals closest to you.

Which charger does the Fulbat FTX5L-BS need?

A charger with an AGM mode that limits voltage to about 14.4-14.7 V. Never an old unregulated charger: overcharging dries out an AGM beyond repair.

AGM technology in the FTX5L-BS

The FTX5L-BS is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. Being sealed, the FTX5L-BS can be fitted in the boot or under a seat with no risk of spills.

Other options if you are unsure about the FTX5L-BS

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