Motobatt MBT12B4 · Motorcycle battery 12V 11Ah 150A AGM
Specifications
| Brand | MOTOBATT |
|---|---|
| Part number | MBT12B4 |
| Voltage (V) | 12 |
| Capacity (C20) | 11Ah (c20) |
| Capacity (C10) | 11Ah (c10) |
| Cold cranking amps (EN) | 150A |
| Technology | Quadflex |
| Length | 150.00 mm |
| Width | 70.00 mm |
€145.30
VAT included
Motobatt MBT12B4 12V 11Ah 150A is a motorcycle starter battery with standard JIS code (the one on your bike's original label). Ready to use, sealed and vibration-resistant. Fits any model that takes the same JIS reference — the code your mechanic recognises at a glance.
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
JIS code
YT12BBS, YT12B4
Voltage
12 V
Capacity
11 Ah
Cold cranking
150 A
Dimensions
150×70×130 mm
Technology
AGM Quadflex
Weight
3,52 kg
Model
MOTOBATT QUADFLEX
Mfr. reference
MBT12B4
Motorcycle battery Motobatt YT12BBS-YT12B4 Quadflex 11Ah 150A 12V
JIS codeYT12BBS-YT12B4
12VVoltage
11AhCapacity
150ACold cranking
3.52kgWeight
The Motobatt YT12BBS-YT12B4 motorcycle battery is rated at 12 V, 11 Ah and 150 A of cold cranking current (EN) from the Quadflex range, and is designed for motorcycles, scooters, quads and personal watercraft. Its 150 × 70 × 130 mm make it the exact replacement for the 11 Ah battery fitted as standard to many motorcycles.
- Compact and lightweight format.
- Holds its charge through winter storage.
- Sealed and ready to fit, no acid handling.
- AGM: faster recharging and better cycle resistance than a conventional battery.
What the Motobatt YT12BBS-YT12B4 is for
Designed for motorcycles, scooters, quads and personal watercraft, the Motobatt YT12BBS-YT12B4 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 3.52 kg.
Dimensions, polarity and mounting
The Motobatt YT12BBS-YT12B4 is made in the 150 × 70 × 130 mm format and weighs 3.52 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.
Motobatt: the maker behind the YT12BBS-YT12B4
Motobatt is the motorcycle battery specialist with Quadflex technology: four terminals that let you connect the battery in any position and a sealed AGM construction ready to fit. All the Motobatt batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.
The Motobatt YT12BBS-YT12B4: Quadflex range and AGM technology
Within the Motobatt catalogue, the Quadflex series groups the references designed for this use. The YT12BBS-YT12B4 is the 11 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.
Usage and maintenance tips
Check the resting voltage before the season (above 12.6 V on a charged battery) and make sure the terminals are clean and tight. 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.
Warranty and coverage
The Motobatt YT12BBS-YT12B4 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.
Delivery times and returns
Orders placed before 6:00 pm with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic Islands and the rest of the European Union allow 3 to 5 working days. You have 14 days to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships.
BCOM-MOTOBATT-MBT12B4
Data sheet
- Brand
- MOTOBATT
- Reference
- MBT12B4
- Model
- MOTOBATT QUADFLEX
- Voltage (V)
- 12
- Length
- 150.00 mm
- Width
- 70.00 mm
- Height
- 130.00 mm
- Weight
- 3.52 Kgs
- Technology
- Quadflex
- JIS
- YT12BBS-YT12B4
- Cold cranking amps (EN)
- 150A
- Capacity (C20)
- 11Ah (c20)
- Capacity (C10)
- 11Ah (c10)
Specific References
- MPN
- MBT12B4
Recommended accessories
How to change the battery
Guide to replace your motorcycle battery in 10-15 minutes. Motorcycle batteries are light (2-5 kg) and usually need an 8 mm wrench.
Step 1. Prepare the vehicle
Park on a flat surface, switch off the engine and remove the key. Make sure all lights and electrical accessories are off. Wait 1-2 minutes before starting.
Step 2. Locate the battery compartment
On motorcycles it is usually under the seat, in the rear cowl or behind a side panel. Check the manual — access varies a lot between models.
Step 3. Disconnect the negative (−) terminal
Use the 10 mm wrench to loosen the negative cable nut (black, marked −) and remove the cable from the post. Move it aside so it cannot touch any bodywork.
Step 4. Disconnect the positive (+) terminal
Repeat with the positive cable (red, marked +). Important: never let a terminal touch metal of the car while the other is still connected.
Step 5. Remove the old battery
Loosen the hold-down clamp or the straps that secure it. Lift the battery carefully — typical weight 2-5 kg. Check the terminals are not corroded before fitting the new one.
Step 6. Install the new battery
Place the battery in the same orientation as the old one (positive terminal on the same side). Tighten the hold-down clamp firmly.
Step 7. Connect the cables
Connect the positive (+) terminal first, then the negative (−). Tighten the nuts with the wrench until each terminal does not move. Apply anti-spark grease if you have any.
Step 8. Verify the engine starts
Close the bonnet. Start the engine to confirm everything works. On cars with Start-Stop or a BMS, you may need to register the battery via OBD so the alternator applies the correct charging profile.
Frequently asked questions
How do I fit the YT12BBS-YT12B4 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 this page. 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 YT12BBS-YT12B4 battery last?
Expected lifespan of the Motobatt YT12BBS-YT12B4 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 are the dimensions of the Motobatt YT12BBS-YT12B4 battery?
Dimensions (length × width × height) are 150×70×130 mm — also written as 150x70x130 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.
Will the Motobatt YT12BBS-YT12B4 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 YT12BBS-YT12B4 typically fits a wide range of European vehicles thanks to its standard DIN case format.
What are the equivalents of the YT12BBS-YT12B4 model?
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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