Motobatt MBT9B4 · Motorcycle battery 12V 9Ah 115A AGM
Motorcycle battery Motobatt MBT9B4 12V 9Ah 115A AGM images
Specifications
| Brand | MOTOBATT |
|---|---|
| Part number | MBT9B4 |
| Voltage (V) | 12 |
| Capacity (C20) | 9Ah (c20) |
| Capacity (C10) | 9Ah (c10) |
| Cold cranking amps (EN) | 115A |
| Technology | Quadflex |
| Length | 150.00 mm |
| Width | 70.00 mm |
Motobatt MBT9B4 12V 9Ah 115A 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
Motorcycle battery Motobatt YT9B4-YT9BBS Quadflex 9Ah 115A 12V
With 9 Ah at 12 V and 115 A of cold cranking current (EN), the Motobatt YT9B4-YT9BBS with AGM technology replaces the original battery of motorcycles, scooters, quads and personal watercraft. It measures 150 × 70 × 104 mm, the format sought by anyone replacing a 9 Ah battery in motorcycles.
- Energetic cranking for high-compression engines.
- Resistant to the vibration typical of two wheels.
- Same JIS code as the original battery: fits first time.
- AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
What the Motobatt YT9B4-YT9BBS is for
Designed for motorcycles, scooters, quads and personal watercraft, the Motobatt YT9B4-YT9BBS replaces the original battery of bikes that use this code or format. Check the position of the positive terminal before ordering. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 2.82 kg.
Dimensions, polarity and mounting
It has external dimensions of 150 × 70 × 104 mm and weighs 2.82 kg. 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.
The Motobatt YT9B4-YT9BBS: Quadflex range and AGM technology
Within the Motobatt catalogue, the Quadflex series groups the references designed for this use. The YT9B4-YT9BBS is the 9 Ah model of that family, with the same performance as its siblings in other sizes.
AGM means the acid is held in a glass mat instead of floating free. That is why the battery can be installed in the cabin without gases, survives more cycles and recovers its charge quickly.
What Motobatt does differently
Motobatt batteries stand out for capacity and cranking current above the original battery in the same tray, thanks to a compact AGM design and the four-terminal Quadflex system. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.
Official warranty
The Motobatt YT9B4-YT9BBS 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.
When you get it and how to return it
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.
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ReferenceBCOM-MOTOBATT-MBT9B4
Data sheet
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BrandMOTOBATT
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ReferenceMBT9B4
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ModelMOTOBATT QUADFLEX
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Voltage (V)12
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Length150.00 mm
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Width70.00 mm
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Height104.00 mm
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Weight2.82 Kgs
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TechnologyQuadflex
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JISYT9B4-YT9BBS
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Cold cranking amps (EN)115A
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Capacity (C20)9Ah (c20)
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Capacity (C10)9Ah (c10)
Specific References
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MPNMBT9B4
Recommended accessories
Frequently asked questions
How do I fit the YT9B4-YT9BBS model in my motorcycle?
In most motorcycles it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on our blog. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On motorcycles with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.
How long does the Motobatt YT9B4-YT9BBS battery last?
Expected lifespan of the Motobatt YT9B4-YT9BBS is 4 to 7 years in regular use (depends on technology and climate). In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured.
What size is this battery?
Dimensions (length × width × height) are 150×70×104 mm — also written as 150x70x104 mm — following the European DIN standard. Always measure the space in your motorcycle before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.
Does this battery fit my motorcycle?
Three options to confirm: 1) enter your number plate in the finder (DGT/DVLA/KBA auto-detect your model and engine); 2) check the "Compatible vehicles" tab on this page, where we list every vehicle verified by our technical team; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The YT9B4-YT9BBS typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which batteries are equivalent to the Motobatt YT9B4-YT9BBS?
Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop motorcycles. See the "Equivalents" section to view recommended options at the same performance level.
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