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Motobatt MB5U Quadflex · Motorcycle battery 7Ah 90A AGM

Specifications

BrandMOTOBATT
Part numberMB5U
Voltage (V)12
Capacity (C20)7Ah (c20)
Capacity (C10)7Ah (c10)
Cold cranking amps (EN)90A
TechnologyQuadflex
Length120.00 mm
Width60.00 mm
See the full specifications →
Price: €189.20
VAT included
Quantity

Brand: MOTOBATT batteries Part number: MB5U

Motobatt MB5U 12V 7Ah 90A 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
YB5LB, 12N5-3B
Voltage
12 V
Capacity
7 Ah C20
Cold cranking
90 A EN-1
Dimensions
120×60×130 mm
Technology
AGM Quadflex
Weight
2,3 kg
Model
MOTOBATT QUADFLEX
Mfr. reference
MB5U

Where it fits: the Motobatt MB5U is one of our motorcycle batteries, belongs to our Motobatt batteries and by capacity it sits among our 7Ah batteries.

The Motobatt MB5U in practice

MB5U vs Motobatt MB7BB

The Motobatt MB5U offers 7 Ah and 90 A cold cranking in a 120 × 60 × 130 mm case. The Motobatt MB7BB, same brand and technology, goes up to 9 Ah and 150 A with 30 mm more length and costs €180.50 more. Going up is only worth it if the tray allows it and the car cranks lazily in the cold; in normal use this one is plenty.

Logo Motobatt

Motorcycle battery Motobatt YB5LB Quadflex 7Ah 90A 12V

Equivalent JIS codesYB5LB12N5-3B
12VVoltage
7AhCapacity
90ACold cranking
2.30kgWeight

The Motobatt YB5LB from the Quadflex range is a motorcycle battery with 7 Ah and 90 A of cold cranking current (EN), designed for motorcycles, scooters, quads and personal watercraft. Its 120 × 60 × 130 mm make it the exact replacement for the 7 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 YB5LB is for

Designed for motorcycles, scooters, quads and personal watercraft, the Motobatt YB5LB 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 2.30 kg.

Will it fit your current battery tray?

It has external dimensions of 120 × 60 × 130 mm and weighs 2.30 kg. Before replacing it, measure your current battery tray: if all three dimensions and the terminal positions match, the swap is direct and needs no adapters.

Motobatt: the maker behind the YB5LB

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. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.

The Motobatt YB5LB: Quadflex range and AGM technology

Within the Motobatt catalogue, the Quadflex series groups the references designed for this use. The YB5LB is the 7 Ah model of that family, with the same performance as its siblings in other sizes.

AGM (Absorbent Glass Mat) technology seals the electrolyte in glass microfibre. The result is a maintenance-free battery that is highly vibration-resistant and able to withstand deep discharges that would ruin a classic lead-acid battery.

Care and maintenance

Check the resting voltage before the season (above 12.6 V on a charged battery) and make sure the terminals are clean and tight. If the bike spends the winter standing, connect a trickle charger: deep discharge through inactivity is the first cause of premature failure.

Warranty and coverage

The Motobatt YB5LB 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.

When you get it and how to return it

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.

  • Reference
    BCOM-MOTOBATT-MB5U

Data sheet

  • Brand
    MOTOBATT
  • Reference
    MB5U
  • Model
    MOTOBATT QUADFLEX
  • Voltage (V)
    12
  • Length
    120.00 mm
  • Width
    60.00 mm
  • Height
    130.00 mm
  • Weight
    2.3 Kgs
  • Technology
    Quadflex
  • JIS
    YB5LB 12N5-3B
  • Cold cranking amps (EN)
    90A
  • Capacity (C20)
    7Ah (c20)
  • Capacity (C10)
    7Ah (c10)

Specific References

  • MPN
    MB5U

Download

Datasheet Motobatt MB5U (English)

PDF datasheet of the Motobatt MB5U battery – English

Download (512.9KB)

Other 7Ah batteries: We stock 33 models of 7 Ah to compare by price, technology and cold cranking: see all 7Ah batteries. Same size (120 × 60 × 130 mm): batteries of 120 × 60 × 130 mm.

Recommended accessories — complement the Motobatt MB5U with a charger or tester

Frequently asked questions

How should this motorcycle battery be charged?

With a 12 V motorcycle charger delivering at most 10 % of its capacity: 0.7 A for its 7 Ah. High-current car chargers can damage it. If the bike is laid up for the winter, keep it on a maintenance charger.

What is the service life of the 12N5-3B model?

Expected lifespan of the Motobatt 12N5-3B is 3 to 5 years, keeping it charged when the bike is not in use. 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 measurements of the 12N5-3B model?

Dimensions (length × width × height) are 120×60×130 mm — also written as 120x60x130 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 16:30–18:00 (Spanish time, CET)). The 12N5-3B typically fits a wide range of European vehicles thanks to its standard DIN case format.

What are the equivalents of the 12N5-3B 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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