Fulbat FTX4L-BS / FTZ5S GEL · Motorcycle battery 5.3Ah 70A GEL
Specifications
| Brand | FULBAT |
|---|---|
| Part number | FTX4L-BS / FTZ5S GEL |
| Voltage (V) | 12V |
| Capacity (C20) | 5.30Ah |
| Capacity (C10) | 5Ah (c10) |
| Cold cranking amps (EN) | 70A |
| Technology | GEL |
| Length | 113mm |
| Width | 70mm |
Fulbat FTX4L-BS / FTZ5S GEL 12V 5,3Ah 70A is a sealed motorcycle battery ready to fit, with the JIS reference your mechanic recognises at a glance. Vibration-resistant, keeps voltage during the winter off-season and cranks first time when you take it out for a ride.
Why this motorcycle battery?
- Same JIS referenceas your bike's original — fits first time
- Sealed and ready to useno acid handling, no refills
- Survives winter storageholds charge through long off-season
Where it fits: the Fulbat FTX4L-BS / FTZ5S GEL is one of our motorcycle batteries, belongs to our Fulbat batteries and by capacity it sits among our 5Ah batteries.
The Fulbat FTX4L-BS / FTZ5S GEL in practice
FTX4L-BS / FTZ5S GEL vs Fulbat FTX7L-BS GEL
The Fulbat FTX4L-BS / FTZ5S GEL offers 5 Ah and 70 A cold cranking in a 113 × 70 × 85 mm case. The Fulbat FTX7L-BS GEL, same brand and technology, goes up to 6 Ah and 100 A and costs €17.39 more. The difference shows on diesels and in hard winters; for a daily-driven petrol car the extra is not needed.

Motorcycle battery Fulbat FTX4L-BS / FTZ5S 5.3Ah 70A 12V
The Fulbat FTX4L-BS / FTZ5S is a motorcycle battery with 5.3 Ah and 70 A of cold cranking current (EN), designed for motorcycles, scooters, quads and personal watercraft. Measuring 113 × 70 × 85 mm and the positive terminal on the right, it is the direct replacement for motorcycles fitted from the factory with a 5.3 Ah battery of this format.
- Holds its charge through winter storage.
- Compact and lightweight format.
- GEL: excellent resistance to deep discharge and long cycle life.
- Sealed and ready to fit, no acid handling.
Size, terminals and hold-down of the Fulbat FTX4L-BS / FTZ5S
It has external dimensions of 113 × 70 × 85 mm. The positive terminal on the right decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change.
What the Fulbat FTX4L-BS / FTZ5S is for
With 5.3 Ah, the Fulbat FTX4L-BS / FTZ5S covers the starting of motorcycles, scooters, quads and personal watercraft. The JIS code on your current battery label is the safest way to confirm equivalence.
Technology inside the Fulbat FTX4L-BS / FTZ5S
Within the Fulbat catalogue, the FTX4L-BS / FTZ5S is the 5.3 Ah model designed for this application.
In a GEL battery the electrolyte is gelled with silica: it is fully sealed, cannot spill and tolerates deep discharge very well. It is the preferred technology in electric mobility, marine service and heavy-cycling applications.
Why choose Fulbat batteries
French brand Fulbat is a European reference in motorcycle, garden and leisure batteries: compact ranges, clear JIS codes and a consistent quality that workshops know well. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.
Official warranty
The Fulbat FTX4L-BS / FTZ5S comes with the manufacturer's official warranty. The warranty does not cover discharge through prolonged inactivity: if the bike stands for months, use a trickle charger.
How to make it last longer
If the bike spends the winter standing, connect a trickle charger: deep discharge through inactivity is the first cause of premature failure. Avoid repeated cranking attempts on a cold bike for long: if it does not start on the third try, let the battery rest for a minute.
Delivery times and returns
Same-day dispatch from our warehouse for in-stock orders placed before 6:00 pm: 24-48 working hours in mainland Spain and Portugal, 3 to 5 days in the islands and the rest of Europe. Returns are accepted for 14 days if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email.
Data sheet
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BrandFULBAT
-
ModelFULBAT Motorcycle GEL
-
Voltage (V)12V
-
Length113mm
-
Width70mm
-
Height85mm
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TechnologyGEL
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Terminal layoutPositive right
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Cold cranking amps (EN)70A
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Capacity (C20)5.30Ah
-
Capacity (C10)5Ah (c10)
Specific References
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MPNFTX4L-BS / FTZ5S GEL
Fulbat FTX4L-BS / FTZ5S GEL: alternatives with the same dimensions
Batteries from our catalogue with the same dimensions, voltage and technology as the Fulbat FTX4L-BS / FTZ5S GEL and a similar capacity, sorted by sales. They are not manufacturer-approved equivalents: check the polarity and capacity of your original battery.
| Product | Specifications | Technology | Price | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Fulbat
FTX4L-BS / FTZ5S GEL
This battery
|
12V 5.3Ah 70A | Gel | 28,07 € | |||||||||||||||||||||
Motobatt
MTZ5S
Same size |
12V 4Ah 65A | Gel | 36,95 € +8,88 € | |||||||||||||||||||||
| ||||||||||||||||||||||||
| FTX4L-BS / FTZ5S GEL | MTZ5S | |
|---|---|---|
| Capacity | 5 Ah | 4 Ah |
| Cold cranking (EN) | 70 A | 65 A |
| Technology | Gel | Gel |
| Dimensions (mm) | 113 × 70 × 85 | 113 × 70 × 85 |
| Positive terminal | Positive right | — |
| Price | 28,07 € | 36,95 € |
Automatic selection by dimensions (±3 mm), voltage, technology and capacity (−10 % / +20 %). Official manufacturer warranty on every option.
Other 5Ah batteries: We stock 23 models of 5 Ah to compare by price, technology and cold cranking: see all 5Ah batteries. Same size (113 × 70 × 85 mm): batteries of 113 × 70 × 85 mm.
Recommended accessories
Frequently asked questions
Is the FTX4L-BS / FTZ5S GEL model a gel battery? Where is it used?
Yes. The Fulbat FTX4L-BS / FTZ5S GEL is GEL: sealed lead-acid in which the electrolyte is a gel. Take care when charging: it requires a smart charger with a GEL mode, because it accepts a lower charge voltage than an AGM. Designed for cyclic use (solar installations, motorhomes, electric wheelchairs, motorcycles), it tolerates deep discharges very well.
How should this motorcycle battery be charged?
With a 12 V motorcycle charger delivering at most 10 % of its capacity: 0.5 A for its 5.3 Ah. High-current car chargers can damage it. If the bike is laid up for the winter, keep it on a maintenance charger.
Does it need maintenance?
No: being GEL, it is sealed and nothing needs topping up. Just keep it charged if the bike stands for a long time.
What is the service life of the FTX4L-BS / FTZ5S GEL model?
As a guide, you can expect the Fulbat FTX4L-BS / FTZ5S GEL to last 4 to 6 years, keeping it charged when the bike is not in use, although the real figure may be higher or lower. Many factors play a part: how it is used (lots of short trips, for example), temperature (cold makes every start harder and intense heat evaporates the electrolyte), the condition of the alternator and charging system, power drawn with the engine off and maintenance.
What are the dimensions of the Fulbat FTX4L-BS / FTZ5S GEL battery?
Before buying, measure the space in your motorcycle: one extra millimetre can stop the hold-down clamp from closing. The Fulbat FTX4L-BS / FTZ5S GEL takes up 113×70×85 mm (length, width and height, terminals included).
What polarity does the Fulbat FTX4L-BS / FTZ5S GEL battery have?
On the Fulbat FTX4L-BS / FTZ5S GEL, the polarity is positive on the right. To check, stand the battery in front of you with the terminals nearest you: the positive (+) is the one with the red ring. A change of polarity from the original means longer cables or a reconfigured system and can cause a short circuit: check it before ordering.
Will the Fulbat FTX4L-BS / FTZ5S GEL battery fit my motorcycle?
For your own vehicle: type your number plate into the finder (DGT/DVLA/KBA identify model and engine), check the "Compatible vehicles" tab below, listing vehicles verified by our technical team, or message us on WhatsApp with make, model, engine and year; we reply during business hours (Mon–Fri 10:00–13:30 and 16:30–18:00 (Spanish time, CET)). The FTX4L-BS / FTZ5S GEL typically fits a wide range of European vehicles thanks to its standard DIN case format. The motorcycle manufacturer's specifications always take priority over our tables.
Which batteries are equivalent to the Fulbat FTX4L-BS / FTZ5S GEL?
To replace the Fulbat FTX4L-BS / FTZ5S GEL without modifications, the other battery must be identical in size, polarity, Ah and CCA. The "Equivalents" section of this page gathers the recommended options with equivalent performance.
Fulbat FTX4L-BS / FTZ5S GEL or Motobatt MTZ5S: which one to choose?
Same case and same technology as the FTX4L-BS / FTZ5S GEL: an alternative by size, not an official equivalent. Compared with the FTX4L-BS / FTZ5S GEL it has 1 Ah less and 5 A of cold cranking less. It costs 8,88 € more. If the polarity matches and your bike had a similar capacity, it works as a replacement; if in doubt, ask us with your model.
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