Fulbat

Fulbat FTX20L-BS · Motorcycle battery 12V 18.9Ah 270A

Reference: BOL-FULBAT-FTX20L-BS

Fulbat FTX20L-BS: motorcycle battery (AGM) with 12 V, 18.9 Ah and 270 A cold cranking current, measuring 175 × 87 × 155 mm, with the positive terminal on the right. Need the positive terminal on the left? The same battery is the Fulbat FTX20-BS.

Voltage
12V
Capacity
18.9Ah
Cold cranking amps (EN)
270A
Technology
AGM
Dimensions (L × W × H)
175 × 87 × 155 mm
Polarity
Positive terminal on the right
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The Fulbat FTX20L-BS at a glance

The Fulbat FTX20L-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 18.9 Ah, the FTX20L-BS suits motorcycles and scooters that had a battery of that capacity.

At 18.9 Ah it goes into large-capacity motorcycles, adventure bikes, customs and quads. The FTX20L-BS belongs to the Fulbat FULBAT Motorcycle MF range. The full range of Fulbat batteries

Fulbat FTX20L-BS codes and part numbers

Look for any of these FTX20L-BS codes on your current battery or in the manufacturer's catalogue:

Commercial referenceFTX20L-BS
Not to be confused withFulbat FTX20-BS (18.9 Ah, 270 A, positive terminal on the left), Fulbat FTX20A-BS (18.9 Ah, 270 A, positive terminal on the left)

Equivalents and alternatives to the Fulbat FTX20L-BS

As the FTX20L-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 YTX20L-4 (FA)AGM18 Ah270 A175 × 87 × 154
Exide AGM12-19AGM18 Ah270 A175 × 90 × 155
Exide ETX20HL-BSAGM18 Ah270 A175 × 90 × 155
Varta YTX20H-BSAGM18 Ah320 A175 × 87 × 154
Varta YTX20HL-BSAGM18 Ah320 A175 × 87 × 154
Motobatt MBTX20UAGM21 Ah310 A175 × 87 × 155

Fulbat FTX20L-BS vs FTX24HL-BS, FTX20-BS and FTX14L-BS

What sets the FTX20L-BS apart from its neighbours in the Fulbat range:

ModelCapacityCold cranking (EN)Dimensions (mm)PositiveWeight
Fulbat FTX20L-BS (this one)18.9 Ah270 A175 × 87 × 155right5.98 kg
Fulbat FTX24HL-BS22.1 Ah350 A205 × 87 × 162right7.34 kg
Fulbat FTX20-BS18.9 Ah270 A175 × 87 × 155left5.98 kg
Fulbat FTX14L-BS12.6 Ah200 A150 × 87 × 145right4.29 kg
  • Fulbat FTX24HL-BS: 3.20 Ah more, 80 A more cranking power, a different case (205 × 87 × 162 mm).
  • Fulbat FTX20-BS: identical to the FTX20L-BS except for the positive terminal, which is on the other side (positive terminal on the left).
  • Fulbat FTX14L-BS: 6.30 Ah less, 70 A less cranking power, a different case (150 × 87 × 145 mm).

What to look at before buying the FTX20L-BS

  • The FTX20L-BS needs 175 × 87 × 155 mm of space: measure it with the hold-down clamp in place.
  • With the terminals facing you, the positive terminal of the FTX20L-BS is on the right.
  • With 18.9 Ah, the FTX20L-BS replaces an original battery of that capacity or slightly less.
  • Cold cranking: 270 A (EN), equal to or higher than the original.

Frequently asked questions about the Fulbat FTX20L-BS

Fulbat FTX20L-BS or FTX24HL-BS?

Compared with the FTX20L-BS, the Fulbat FTX24HL-BS has 3.20 Ah more and 80 A more cranking power. If your current battery says 350 A or more, choose the FTX24HL-BS; if it says 270 A or less, the FTX20L-BS is enough. Mind the space: the FTX24HL-BS measures 205 × 87 × 162 mm.

What is the difference between the Fulbat FTX20L-BS and the FTX20-BS?

They are the same battery with the terminals swapped: positive terminal on the right on the FTX20L-BS, positive terminal on the left on the FTX20-BS. Look at your current battery with the terminals facing you and pick the one that matches.

How much does the Fulbat FTX20L-BS weigh?

The FTX20L-BS weighs 5.98 kg. For reference, the Fulbat FTX24HL-BS (22.1 Ah) weighs 7.34 kg.

Which battery is equivalent to the Fulbat FTX20L-BS?

Only other AGM batteries with its dimensions and polarity: Varta YTX20L-4 (FA), Exide AGM12-19 and Exide ETX20HL-BS. Neither an EFB nor a conventional battery replaces the FTX20L-BS.

Which charger does the Fulbat FTX20L-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.

Inside the FTX20L-BS: AGM technology

The FTX20L-BS is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. Being sealed, the FTX20L-BS can be fitted in the boot or under a seat with no risk of spills.

Keep comparing: alternatives to the FTX20L-BS

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