Motobatt MB16AU · Motorcycle battery 12V 20.5Ah 230A AGM
Specifications
| Brand | MOTOBATT |
|---|---|
| Part number | MB16AU |
| Voltage (V) | 12 |
| Capacity (C20) | 20 5Ah (c20) |
| Capacity (C10) | 20 5Ah (c10) |
| Technology | Quadflex |
| Length | 207.00 mm |
| Width | 72.00 mm |
| Height | 164.00 mm |
€186.40
VAT included
4,81/5★★★★★17 reviewsVerified purchases
- ★★★★★Ignacio Santana:
Excelente atención, resolvieron todas mis dudas
- ★★★★Daniel Montero:
Los precios son muy competitivos pero la atención al cliente en esta web es lo mejor.
- ★★★★★Felipe Gutierrez:
Quiero dejar una reseña por que me parece increíble el buen trato que me dieron. Muy buena atención telefónica
Motobatt MB16AU 12V 20Ah 230A 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
YB16ALA2
Voltage
12 V
Capacity
20 Ah
Cold cranking
230 A
Dimensions
207×72×164 mm
Technology
AGM Quadflex
Weight
6,25 kg
Model
MOTOBATT QUADFLEX
Mfr. reference
MB16AU
Motorcycle battery Motobatt YB16ALA2 Quadflex 20Ah 230A 12V
JIS codeYB16ALA2
12VVoltage
20AhCapacity
230ACold cranking
6.25kgWeight
The Motobatt YB16ALA2 motorcycle battery is rated at 12 V, 20 Ah and 230 A of cold cranking current (EN) from the Quadflex range, and is designed for motorcycles, scooters, quads and personal watercraft. It measures 207 × 72 × 164 mm, the format sought by anyone replacing a 20 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.
Size, terminals and hold-down of the Motobatt YB16ALA2
In terms of format, the Motobatt YB16ALA2 measures 207 × 72 × 164 mm (length × width × height) and weighs 6.25 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.
What the Motobatt YB16ALA2 is for
Designed for motorcycles, scooters, quads and personal watercraft, the Motobatt YB16ALA2 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 6.25 kg.
The Motobatt YB16ALA2: Quadflex range and AGM technology
The Quadflex is the Motobatt range the YB16ALA2 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.
Why choose Motobatt batteries
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.
Warranty and coverage
The Motobatt YB16ALA2 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.
How to make it last longer
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.
Delivery times and returns
Order before 6:00 pm with stock available and it leaves today: mainland Spain and Portugal receive it in 24-48 working hours, the islands and the rest of the EU in 3 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.
BCOM-MOTOBATT-MB16AU
Data sheet
- Brand
- MOTOBATT
- Reference
- MB16AU
- Model
- MOTOBATT QUADFLEX
- Voltage (V)
- 12
- Length
- 207.00 mm
- Width
- 72.00 mm
- Height
- 164.00 mm
- Weight
- 6.25 Kgs
- Technology
- Quadflex
- JIS
- YB16ALA2
- Cold cranking amps (EN)
- 230A
- Capacity (C20)
- 20 5Ah (c20)
- Capacity (C10)
- 20 5Ah (c10)
Specific References
- MPN
- MB16AU
4,81/5
Verified purchasesLatest verified reviews
★★★★★Ignacio Santana
23/05/2026Gran atención al cliente
Excelente atención, resolvieron todas mis dudas
★★★★★Daniel Montero
17/02/2026De lo mejor
Los precios son muy competitivos pero la atención al cliente en esta web es lo mejor.
★★★★★Felipe Gutierrez
12/01/2026Gran atención
Quiero dejar una reseña por que me parece increíble el buen trato que me dieron. Muy buena atención telefónica
★★★★★Alejandro Ortega
22/12/2025Buen servicio
Se agradece ver que detrás de esta web hay un equipo de profesionales preocupados por asesorarte de la mejor manera.
Comparison: Motobatt MB16AU vs equivalents
The Motobatt MB16AU is interchangeable with these equivalent references: 516016012 (Varta), EB16AL-A2 (Exide).
| Product | Specifications | Technology | Price |
|---|---|---|---|
Motobatt
MB16AU
This battery
|
12V 20Ah 230A | Quadflex | €186.40 |
Varta
516016012
|
12V 16Ah 180A | Lead-acid | €136.30 |
Exide
EB16AL-A2
|
12V 16Ah 175A | Lead-acid | €65.90 |
Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.
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 change this battery step by step?
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 many years does this battery last?
Expected lifespan of the Motobatt YB16ALA2 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 size is this battery?
Dimensions (length × width × height) are 207×72×164 mm — also written as 207x72x164 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.
Is the YB16ALA2 valid for my vehicle?
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 YB16ALA2 typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which batteries are equivalent to the Motobatt YB16ALA2?
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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