Fulbat FTX20-BS · Motorcycle battery 12V 18.9Ah 270A
Reference: BOL-FULBAT-FTX20-BS
The Fulbat FTX20-BS is a 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 left. If yours has the positive terminal on the right, you need the Fulbat FTX20L-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 left
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The Fulbat FTX20-BS at a glance
The Fulbat FTX20-BS is made for motorcycles, scooters and quads. It is worth keeping the FTX20-BS on a maintenance charger if the bike is laid up over winter.
At 18.9 Ah it goes into large-capacity motorcycles, adventure bikes, customs and quads. The FTX20-BS belongs to the Fulbat FULBAT Motorcycle MF range. The full range of Fulbat batteries
Fulbat FTX20-BS codes and part numbers
Shops, garages and catalogues identify the FTX20-BS with these codes:
| Commercial reference | FTX20-BS |
|---|---|
| Not to be confused with | Fulbat FTX20L-BS (18.9 Ah, 270 A, positive terminal on the right), Fulbat FTX20A-BS (18.9 Ah, 270 A) |
Equivalents and alternatives to the Fulbat FTX20-BS
As the FTX20-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.
| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Exide AGM12-19.1 | AGM | 18 Ah | 270 A | 175 × 90 × 155 |
| Exide ETX20H-BS | AGM | 18 Ah | 270 A | 175 × 90 × 155 |
| Motobatt MBTX20U | AGM | 21 Ah | 310 A | 175 × 87 × 155 |
| Motobatt MBTX20UHD | AGM | 21 Ah | 310 A | 175 × 87 × 155 |
| Varta YTX20-BS | AGM | 18 Ah | 250 A | 177 × 88 × 156 |
| Varta TX20H (FA) | AGM | 18 Ah | 310 A | 176 × 89 × 154 |
Fulbat FTX20-BS vs FTX16-BS, FTX20L-BS and FTX14-BS: differences
How the FTX20-BS compares with Fulbat batteries of similar size and capacity:
| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Fulbat FTX20-BS (this one) | 18.9 Ah | 270 A | 175 × 87 × 155 | left | 5.98 kg |
| Fulbat FTX16-BS | 14.7 Ah | 230 A | 150 × 87 × 161 | left | 5.17 kg |
| Fulbat FTX20L-BS | 18.9 Ah | 270 A | 175 × 87 × 155 | right | 5.98 kg |
| Fulbat FTX14-BS | 12.6 Ah | 200 A | 150 × 87 × 145 | left | 4.29 kg |
- Fulbat FTX16-BS: 4.20 Ah less, 40 A less cranking power, a different case (150 × 87 × 161 mm).
- The Fulbat FTX20L-BS is the same battery with the positive terminal on the other side: choose it if your current battery has the positive terminal on the right.
- Fulbat FTX14-BS: 6.30 Ah less, 70 A less cranking power, a different case (150 × 87 × 145 mm).
What to look at before buying the FTX20-BS
- The FTX20-BS needs 175 × 87 × 155 mm of space: measure it with the hold-down clamp in place.
- The FTX20-BS has the positive terminal on the left: compare it with your current battery.
- With 18.9 Ah, the FTX20-BS replaces an original battery of that capacity or slightly less.
- The FTX20-BS delivers 270 A cold cranking (EN standard); do not go below what your original battery states.
Frequently asked questions about the Fulbat FTX20-BS
Fulbat FTX20-BS or FTX16-BS?
Compared with the FTX20-BS, the Fulbat FTX16-BS has 4.20 Ah less and 40 A less cranking power. The FTX20-BS cranks harder; the FTX16-BS is only a good option if your original battery says 230 A or less. Mind the space: the FTX16-BS measures 150 × 87 × 161 mm.
What is the difference between the Fulbat FTX20-BS and the FTX20L-BS?
They are the same battery with the terminals swapped: positive terminal on the left on the FTX20-BS, positive terminal on the right on the FTX20L-BS. Look at your current battery with the terminals facing you and pick the one that matches.
How much does the Fulbat FTX20-BS weigh?
The FTX20-BS weighs 5.98 kg. For reference, the Fulbat FTX16-BS (14.7 Ah) weighs 5.17 kg.
Which battery is equivalent to the Fulbat FTX20-BS?
Only other AGM batteries with its dimensions and polarity: Exide AGM12-19.1, Exide ETX20H-BS and Motobatt MBTX20U. Neither an EFB nor a conventional battery replaces the FTX20-BS.
Does the Fulbat FTX20-BS come charged and ready to fit?
Sealed AGM and gel batteries leave the factory charged and ready. Conventional ones with a separate acid pack are activated when filled and should be charged before fitting.
Inside the FTX20-BS: AGM technology
Inside, the FTX20-BS has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.
Keep comparing: alternatives to the FTX20-BS
- All motorcycle batteries
- The whole Fulbat range
- Exide AGM12-19.1 · 18 Ah, 270 A, 175×90×155 mm
- Exide ETX20H-BS · 18 Ah, 270 A, 175×90×155 mm
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