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Motobatt MB12U Quadflex · Motorcycle battery 15Ah 160A AGM

Specifications

BrandMOTOBATT
Part numberMB12U
Voltage (V)12
Capacity (C20)15Ah (c20)
Capacity (C10)15Ah (c10)
Cold cranking amps (EN)160A
TechnologyQuadflex
Length135.00 mm
Width80.00 mm
See the full specifications →
Price: €170.10
VAT included
Quantity

Brand: MOTOBATT batteries Part number: MB12U

Motobatt MB12U 12V 15Ah 160A 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
JIS code
YB12AA, YB12ALA, YB12ALA2, YB12AB, YB12CA
Voltage
12 V
Capacity
15 Ah C20
Cold cranking
160 A EN-1
Dimensions
135×80×161 mm
Technology
AGM Quadflex
Weight
4,4 kg
Model
MOTOBATT QUADFLEX
Mfr. reference
MB12U

Where it fits: the Motobatt MB12U is one of our motorcycle batteries, belongs to our Motobatt batteries and by capacity it sits among our 15Ah batteries.

Logo Motobatt

Motorcycle battery Motobatt YB12AA Quadflex 15Ah 160A 12V

Equivalent JIS codesYB12AAYB12ALAYB12ALA2YB12ABYB12CA
12VVoltage
15AhCapacity
160ACold cranking
4.40kgWeight

The Motobatt YB12AA from the Quadflex range is a motorcycle battery with 15 Ah and 160 A of cold cranking current (EN), designed for motorcycles, scooters, quads and personal watercraft. It measures 135 × 80 × 161 mm, the format sought by anyone replacing a 15 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.

Dimensions, polarity and mounting

In terms of format, the Motobatt YB12AA measures 135 × 80 × 161 mm (length × width × height) and weighs 4.40 kg. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.

What the Motobatt YB12AA is for

With 15 Ah, the Motobatt YB12AA 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. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 4.40 kg.

The Motobatt YB12AA: Quadflex range and AGM technology

The Quadflex is the Motobatt range the YB12AA belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle.

In an AGM battery the electrolyte is absorbed in glass-fibre separators: there is no free liquid, it cannot spill and it can be mounted at an angle. That construction lowers internal resistance, speeds up recharging and multiplies cycle life compared with a conventional battery.

Motobatt: the maker behind the YB12AA

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. We guarantee that every Motobatt arrives new, charged and with the manufacturer's full warranty.

Manufacturer's warranty

The Motobatt YB12AA 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.

Care and maintenance

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. If the bike spends the winter standing, connect a trickle charger: deep discharge through inactivity is the first cause of premature failure.

Delivery times and returns

Order before 6:00 pm with stock available and it leaves today: mainland Spain and Portugal receive it in 1 to 2 working days, the islands and the rest of the EU in 1 to 5 days. You have 14 days to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email.

  • Reference
    BCOM-MOTOBATT-MB12U

Data sheet

  • Brand
    MOTOBATT
  • Reference
    MB12U
  • Model
    MOTOBATT QUADFLEX
  • Voltage (V)
    12
  • Length
    135.00 mm
  • Width
    80.00 mm
  • Height
    161.00 mm
  • Weight
    4.4 Kgs
  • Technology
    Quadflex
  • JIS
    YB12AA YB12ALA YB12ALA2 YB12AB YB12CA
  • Cold cranking amps (EN)
    160A
  • Capacity (C20)
    15Ah (c20)
  • Capacity (C10)
    15Ah (c10)

Specific References

  • MPN
    MB12U

Download

Datasheet Motobatt MB12U (English)

PDF datasheet of the Motobatt MB12U battery – English

Download (518.24KB)

Other 15Ah batteries: We stock 6 models of 15 Ah to compare by price, technology and cold cranking: see all 15Ah batteries.

Recommended accessories — complement the Motobatt MB12U with a charger or tester

Compatible vehicles

The Motobatt MB12U fits 28 vehicles. Most searched below:

See all 28 compatible vehicles

Frequently asked questions

How should this motorcycle battery be charged?

With a 12 V motorcycle charger delivering at most 10 % of its capacity: 1.5 A for its 15 Ah. High-current car chargers can damage it. If the bike is laid up for the winter, keep it on a maintenance charger.

How many years does this battery last?

As a guide, you can expect the Motobatt YB12CA to last 3 to 5 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 Motobatt YB12CA battery?

It measures 135×80×161 mm in length × width × height, with the terminals included in the height. Measure the battery tray before ordering: a one-millimetre difference is enough for the hold-down clamp not to close.

Is the YB12CA valid for my vehicle?

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)). In every case, the motorcycle manufacturer's specifications (owner's handbook) take precedence. Our database holds 28 verified vehicle versions for the Motobatt YB12CA.

What are the equivalents of the YB12CA model?

A direct equivalent needs what this YB12CA offers: 135×80×161 mm, the same Ah and CCA. The "Equivalents" section further down lists the recommended alternatives.


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