Exide ETR4A-BS YTR4A-BS · Motorcycle battery 2Ah 35A AGM
Specifications
| Brand | EXIDE |
|---|---|
| Part number | ETR4A-BS |
| Voltage (V) | 12 |
| Capacity (C20) | 2Ah (c20) |
| Capacity (C10) | 2.3Ah (c10) |
| Cold cranking amps (EN) | 35A |
| Technology | AGM |
| Length | 115 mm |
| Width | 50 mm |
Exide ETR4A-BS 12V 2Ah 35A 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
Where it fits: the Exide ETR4A-BS is one of our motorcycle batteries, belongs to our Exide batteries and by capacity it sits among our 2Ah batteries.

Motorcycle battery Exide ETR4A-BS Moto AGM 2Ah 35A 12V
The Exide ETR4A-BS from the Moto AGM range is a motorcycle battery with 2 Ah and 35 A of cold cranking current (EN), designed for motorcycles, scooters, quads and personal watercraft. Measuring 115 × 50 × 85 mm and the positive terminal on the right, it is the direct replacement for motorcycles fitted from the factory with a 2 Ah battery of this format.
- Holds its charge through winter storage.
- Compact and lightweight format.
- AGM: faster recharging and better cycle resistance than a conventional battery.
- Sealed and ready to fit, no acid handling.
Dimensions, polarity and mounting
The Exide ETR4A-BS is made in the 115 × 50 × 85 mm format and weighs 1 kg. The positive terminal on the right decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. It uses a B0 hold-down and M14 terminals, the system that anchors and connects it in the vehicle. 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 the Exide ETR4A-BS is for
Designed for motorcycles, scooters, quads and personal watercraft, the Exide ETR4A-BS 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 1 kg, M14 terminals and B0 hold-down.
The Exide ETR4A-BS: Moto AGM range and AGM technology
Within the Exide catalogue, the Moto AGM series groups the references designed for this use. The ETR4A-BS is the 2 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 Exide batteries
With more than a century of history, Exide Technologies manufactures automotive, marine, motorcycle and industrial batteries in Europe. Its presence as original equipment on assembly lines vouches for the quality of every reference. All the Exide batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.
Manufacturer's warranty
The Exide ETR4A-BS 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.
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.
Data sheet
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BrandEXIDE
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ReferenceETR4A-BS
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ModelEXIDE MOTO AGM 12V
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Voltage (V)12
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Length115 mm
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Width50 mm
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Height85 mm
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Weight1.00 Kgs
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TechnologyAGM
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EAN3661024033718
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Terminal layoutPositive terminal on the right
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Terminal typeM14
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JISYTR4A-BS
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Hold-downB0
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Cold cranking amps (EN)35A
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Capacity (C20)2Ah (c20)
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Capacity (C10)2.3Ah (c10)
Specific References
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EAN133661024033718
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MPNETR4A-BS
Codes and references Exide ETR4A-BS
| Brand | Exide · see all Exide batteries |
|---|---|
| Manufacturer range | EXIDE MOTO AGM 12V |
| Manufacturer part number (MPN) | ETR4A-BS |
| Also known as | ETR4ABS · ETR4A BS |
| EAN-13 barcode | 3661024033718 |
| Dimensions (length × width × height) | 115 × 50 × 85 mm (115x50x85) |
Exide ETR4A-BS: alternatives with the same dimensions
Batteries from our catalogue with the same dimensions, voltage and technology as the Exide ETR4A-BS and a similar capacity, sorted by sales. They are not manufacturer-approved equivalents: check the polarity and capacity of your original battery.
| Product | Specifications | Technology | Price | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Exide
ETR4A-BS
This battery
|
12V 2Ah 35A | AGM | 15,20 € | |||||||||||||||||||||
Varta
YTR4A-BS
Same size |
12V 2.3Ah 30A | AGM | 74,95 € +59,75 € | |||||||||||||||||||||
| ||||||||||||||||||||||||
| ETR4A-BS | YTR4A-BS | |
|---|---|---|
| Capacity | 2 Ah | 2 Ah |
| Cold cranking (EN) | 35 A | 30 A |
| Technology | AGM | AGM |
| Dimensions (mm) | 115 × 50 × 85 | 114 × 49 × 86 |
| Positive terminal | Positive terminal on the right | Positive terminal on the right |
| Price | 15,20 € | 74,95 € |
Automatic selection by dimensions (±3 mm), voltage, technology and capacity (−10 % / +20 %). Official manufacturer warranty on every option.
Other 2Ah batteries: We stock 24 models of 2 Ah to compare by price, technology and cold cranking: see all 2Ah batteries.
Recommended accessories
Frequently asked questions
Is this battery AGM? What is it for?
Yes, it is AGM. In an AGM battery such as the YTR4A-BS, the electrolyte is not free but absorbed in a glass-fibre mat inside a sealed lead-acid battery. It withstands more cycles than a conventional battery and copes better with heat.
How should this motorcycle battery be charged?
With a 12 V motorcycle charger delivering at most 10 % of its capacity: 0.5 A for its 2 Ah. High-current car chargers can damage it. If the bike is laid up for the winter, keep it on a maintenance charger.
Does it need maintenance?
No: being AGM, it is sealed and nothing needs topping up. Just keep it charged if the bike stands for a long time.
How many years does this battery last?
There is no exact figure: for a battery such as the Exide YTR4A-BS (AGM), a reasonable guide is 4 to 6 years, keeping it charged when the bike is not in use. It can vary considerably with usage (short or long journeys), temperature, the condition of the alternator and charging system, power drawn with the engine off and maintenance. Cold demands more at every start and intense heat evaporates the electrolyte.
What size is this battery?
Before buying, measure the space in your motorcycle: one extra millimetre can stop the hold-down clamp from closing. The Exide YTR4A-BS takes up 115×50×85 mm (length, width and height, terminals included).
What polarity does the Exide YTR4A-BS battery have?
It has the positive on the right (polarity). If your current battery has its positive on the other side, this one is not suitable without longer cables or a reconfigured system (short-circuit risk). Put it in front of you, terminals towards you: the post with the red ring and the + sign is the positive.
Does this battery fit my motorcycle?
Not sure? Try your number plate in the finder (DGT/DVLA/KBA detect model and engine) or the "Compatible vehicles" tab, checked by our technical team; if your motorcycle is not there, send us make, model, engine and year on WhatsApp and we will reply during business hours (Mon–Fri 10:00–13:30 and 16:30–18:00 (Spanish time, CET)). The YTR4A-BS typically fits a wide range of European vehicles thanks to its standard DIN case format. The motorcycle manufacturer's specifications always take priority over our tables.
What are the equivalents of the YTR4A-BS model?
A battery interchangeable with the Exide YTR4A-BS must match it on dimensions (115×50×85 mm), polarity (positive on the right), capacity (2 Ah) and cranking current (35 A). The options at the same level are in the "Equivalents" section of this page.
Exide ETR4A-BS or Varta YTR4A-BS: which one to choose?
It has the same dimensions, voltage and technology as the ETR4A-BS, although it is not a manufacturer-approved equivalent. Compared with the ETR4A-BS it has 5 A of cold cranking less. It costs 59,75 € more. Check the positive terminal side and the original capacity before ordering; otherwise it is a straight swap.
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