Motobatt MB5.5U · Motorcycle battery 12V 7Ah 90A AGM
Specifications
| Brand | MOTOBATT |
|---|---|
| Part number | MB5.5U |
| Voltage (V) | 12 |
| Capacity (C20) | 7 |
| Capacity (C10) | 7Ah (c10) |
| Technology | Quadflex |
| Length | 135.00 mm |
| Width | 60.00 mm |
| Height | 130.00 mm |
€369.70
VAT included
4,97/5★★★★★8 reviewsVerified purchases
- ★★★★★Domingo Vargas:
Gracias a vuestra ayuda pude instalar la batería
- ★★★★★Enrique Santos:
Agradezco que me asesoraran de cómo instalar la batería que compré
- ★★★★★Sergio Aguilar:
Me alegra que cumplen con los tiempos de envío
Motobatt MB5.5U 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
Voltage
12 V
Capacity
7 Ah
Cold cranking
90 A
Dimensions
135×60×130 mm
Technology
AGM Quadflex
Weight
2,48 kg
Model
MOTOBATT QUADFLEX
Mfr. reference
MB5.5U
Motorcycle battery Motobatt MB5.5U Quadflex 7Ah 90A 12V
12VVoltage
7AhCapacity
90ACold cranking
2.48kgWeight
The Motobatt MB5.5U 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. It replaces the original battery without adaptation in motorcycles with a 135 × 60 × 130 mm format: same 7 Ah capacity.
- AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
- Same JIS code as the original battery: fits first time.
- Resistant to the vibration typical of two wheels.
- Energetic cranking for high-compression engines.
What the Motobatt MB5.5U is for
The Motobatt MB5.5U is a common replacement in motorcycles, scooters, quads and personal watercraft. If your bike spends the winter standing, a trickle charger stops it reaching spring flat. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 2.48 kg.
Size, terminals and hold-down of the Motobatt MB5.5U
It has external dimensions of 135 × 60 × 130 mm and weighs 2.48 kg. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.
The Motobatt MB5.5U: Quadflex range and AGM technology
Within the Motobatt catalogue, the Quadflex series groups the references designed for this use. The MB5.5U 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.
Why choose Motobatt batteries
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. All the Motobatt batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.
Manufacturer's warranty
The Motobatt MB5.5U 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.
Usage and maintenance tips
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.
Shipping, delivery 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.
BCOM-MOTOBATT-MB5.5U
Data sheet
- Brand
- MOTOBATT
- Reference
- MB5.5U
- Model
- MOTOBATT QUADFLEX
- Voltage (V)
- 12
- Length
- 135.00 mm
- Width
- 60.00 mm
- Height
- 130.00 mm
- Weight
- 2.48 Kgs
- Technology
- Quadflex
- Cold cranking amps (EN)
- 90A
- Capacity (C20)
- 7
- Capacity (C10)
- 7Ah (c10)
Specific References
- MPN
- MB5.5U
4,97/5
Verified purchasesLatest verified reviews
★★★★★Domingo Vargas
18/05/2026Gracias por su asesoramiento
Gracias a vuestra ayuda pude instalar la batería
★★★★★Enrique Santos
09/02/2026Muy buena ayuda con la instalación
Agradezco que me asesoraran de cómo instalar la batería que compré
★★★★★Sergio Aguilar
05/02/2026Me llegó al día siguiente
Me alegra que cumplen con los tiempos de envío
★★★★★Jesus Aguilar
27/12/2025Encontré lo que buscaba
No tenía ni idea de cómo instalar la batería en mi coche y me ayudaron de principio a fin. Muchas gracias
★★★★★Jose Dominguez
14/10/2025Muy buen asesoramiento
Gracias a vuestra ayuda pude instalar la bateria
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 MB5.5U 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 MB5.5U battery last?
Expected lifespan of the Motobatt MB5.5U 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 measurements of the MB5.5U model?
Dimensions (length × width × height) are 135×60×130 mm — also written as 135x60x130 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 MB5.5U 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 MB5.5U typically fits a wide range of European vehicles thanks to its standard DIN case format.
What are the equivalents of the MB5.5U 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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