Motobatt MBTX20U Quadflex · Motorcycle battery 21Ah 310A AGM
Motorcycle battery Motobatt MBTX20U Quadflex 12V 21Ah 310A AGM images
Specifications
| Brand | MOTOBATT |
|---|---|
| Part number | MBTX20U |
| Voltage (V) | 12 |
| Capacity (C20) | 21Ah (c20) |
| Capacity (C10) | 21Ah (c10) |
| Cold cranking amps (EN) | 310A |
| Technology | Quadflex |
| Length | 175.00 mm |
| Width | 87.00 mm |
Motobatt MBTX20U 12V 21Ah 310A 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
Where it fits: the Motobatt MBTX20U is one of our motorcycle batteries, belongs to our Motobatt batteries and by capacity it sits among our 21Ah batteries.
Motorcycle battery Motobatt YTX20BS Quadflex 21Ah 310A 12V
With 21 Ah at 12 V and 310 A of cold cranking current (EN), the Motobatt YTX20BS with AGM technology replaces the original battery of motorcycles, scooters, quads and personal watercraft. It replaces the original battery without adaptation in motorcycles with a 175 × 87 × 155 mm format: same 21 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 YTX20BS is for
The Motobatt YTX20BS 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 6.50 kg.
The Motobatt YTX20BS: Quadflex range and AGM technology
The Quadflex is the Motobatt range the YTX20BS 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.
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.
Will it fit your current battery tray?
The Motobatt YTX20BS is made in the 175 × 87 × 155 mm format and weighs 6.50 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.
What Motobatt does differently
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.
Usage and maintenance tips
Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. Check the resting voltage before the season (above 12.6 V on a charged battery) and make sure the terminals are clean and tight.
Manufacturer's warranty
The Motobatt YTX20BS 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.
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ReferenceBCOM-MOTOBATT-MBTX20U
Data sheet
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BrandMOTOBATT
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ReferenceMBTX20U
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ModelMOTOBATT QUADFLEX
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Voltage (V)12
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Length175.00 mm
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Width87.00 mm
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Height155.00 mm
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Weight6.5 Kgs
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TechnologyQuadflex
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JISYTX20BS YTX20LBS YTX20HBS YB16B YB16LB YB16CLB
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Cold cranking amps (EN)310A
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Capacity (C20)21Ah (c20)
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Capacity (C10)21Ah (c10)
Specific References
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MPNMBTX20U
Motobatt MBTX20U: best-selling equivalent or higher-spec batteries
The Motobatt MBTX20U is interchangeable with these equivalent references: MBTX20UHD (Motobatt).
| Product | Specifications | Technology | Price | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Motobatt
MBTX20U
This battery
|
12V 21Ah 310A | Quadflex | €149.20 | |||||||||||||||||||||
Motobatt
MBTX20UHD
Same range |
12V 21Ah 310A | Quadflex | €149.20 same price | |||||||||||||||||||||
| ||||||||||||||||||||||||
| MBTX20U | MBTX20UHD | |
|---|---|---|
| Capacity | 21 Ah | 21 Ah |
| Cold cranking (EN) | 310 A | 310 A |
| Technology | Quadflex | Quadflex |
| Dimensions (mm) | 175 × 87 × 155 | 175 × 87 × 155 |
| Positive terminal | — | — |
| Price | €149.20 | €149.20 |
Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.
Other 21Ah batteries: We stock 6 models of 21 Ah to compare by price, technology and cold cranking: see all 21Ah batteries. Same size (175 × 87 × 155 mm): batteries of 175 × 87 × 155 mm.
Recommended accessories
Compatible vehicles
The Motobatt MBTX20U fits 42 vehicles. Most searched below:
Frequently asked questions
How should this motorcycle battery be charged?
With a 12 V motorcycle charger delivering at most 10 % of its capacity: 2.1 A for its 21 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 YB16CLB model?
There is no exact figure: for a battery such as the Motobatt YB16CLB, a reasonable guide is 3 to 5 years, keeping it charged when the bike is not in use. 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 YB16CLB battery?
It measures 175×87×155 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.
Will the Motobatt YB16CLB battery fit my motorcycle?
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. The compatibility list for the YB16CLB runs to 42 verified vehicle versions.
What are the equivalents of the YB16CLB model?
A battery interchangeable with the Motobatt YB16CLB must match it on dimensions (175×87×155 mm), polarity, capacity (21 Ah) and cranking current (310 A). See the "Equivalents" section of this page for the recommended options at the same performance level.
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