Which part of the battery label are you trying to understand?
Part number or UK code
Identifies the product or a familiar UK replacement family.
Nine-digit ETN
Encodes voltage, nominal capacity, a feature code and CCA.
Voltage
Shows the nominal electrical system the battery is designed for.
Capacity and hour rate
Describes stored charge under a stated discharge test.
CCA and standard
Describes cold starting performance under a named test standard.
Battery technology
Flooded, EFB, AGM, GEL and lithium are not interchangeable.
Dimensions and layout
Case, terminals, polarity, hold-down and venting must all match.
Date, serial, QR or BEM code
These codes are manufacturer and vehicle-system specific.
What the main fields on a battery label mean
The label below is an educational example. A real product may use different wording, locations, standards and codes.
The label describes the battery in front of you. It does not prove that the battery is approved for a particular vehicle, model year, engine, Start Stop system or equipment application.
Manufacturer part number vs UK battery code
Complete manufacturer part number
The prefix and suffix identify a particular product range, technology or specification. Always quote the complete code, including letters before and after the familiar number.
UK short code or BBMS-style reference
A familiar UK aftermarket code helps group common replacement batteries. It is useful for recognition but does not replace the complete technology, polarity and vehicle checks.
Reversed or alternative layout reference
A letter such as R can indicate a reversed terminal layout or related variant. Use the product diagram rather than relying on the suffix alone.
Technology-qualified reference
AGM, EFB and conventional versions can share a familiar case or short code. The technology suffix is part of the required specification and must not be ignored.
Original-equipment part number
A vehicle-maker code identifies an original or approved replacement specification. Use a trusted cross-reference to match it with an aftermarket product.
Retail barcode identifier
A barcode or GTIN identifies the packaged product for retail and logistics. It is not a substitute for the fitment and technical specification.
Production changes, optional equipment, battery location, Start Stop technology and auxiliary systems can change the required battery within the same vehicle model range.
How a nine-digit European Type Number is structured
The ETN was introduced as a more detailed replacement for the old DIN numbering system. It combines capacity information with a product-feature code and cold-cranking information.
For this 12V example, 570 represents 70Ah at the 20-hour rate.
Can relate to endurance, lid, terminal, clamping, vibration and design details.
The final three digits commonly represent CCA in 10A steps: 076 = 760A.
| ETN section | What it can tell you | Important limitation |
|---|---|---|
| Digits 1–3 | Voltage family and nominal capacity. Examples include 560 = 12V 60Ah and 660 = 12V 160Ah. | Use the manufacturer specification for unusual or legacy products. |
| Digits 4–6 | A unique code associated with construction, performance and physical features. | It is not reliably decoded without the formal index or manufacturer data. |
| Digits 7–9 | Cold-cranking performance, commonly in 10A steps. | Historic EN1 and EN2 ratings can cause cross-reference confusion. |
Enter a nine-digit ETN
This tool explains the standard structure. It cannot decode every construction feature or confirm vehicle compatibility.
Enter an ETN and decode.
Manufacturer or formal index lookup required.
Usually the final digits multiplied by ten.
Formal central control of ETN number allocation ended in 2006, and the middle feature code is not openly self-explanatory. Use the published battery datasheet and a trusted cross-reference.
Nominal voltage identifies the intended electrical system
A 12V flooded, EFB, AGM, GEL and lithium battery can require different charging, mounting and protection even though the nominal voltage looks similar.
Why the Ah number needs its discharge-rate context
Ah means amp-hour and describes electrical charge capacity under a stated discharge test. A battery can display a 20-hour, 10-hour, five-hour or another rate depending on its application and datasheet.
Nominal capacity
The charge delivered under the stated test conditions—not a promise of 70A for exactly one hour in every real application.
Twenty-hour rate
A 70Ah C20 rating is based on a 3.5A discharge for 20 hours to the specified cutoff voltage under controlled conditions.
Ten-hour rate
The battery is discharged more quickly. Lead-acid batteries commonly show a lower Ah result at a faster rate.
Energy needs voltage as well
Nominal watt-hours are estimated by voltage × Ah. Real usable energy is lower after cutoff, rate effect and system losses.
CCA, technology, vehicle fitment, dimensions, terminals and charging strategy remain essential. A high-Ah standby or cyclic battery may not be suitable for engine starting.
Always read the letters beside the starting-current number
European cold-start rating
The battery is rated under the EN cold-cranking test. Enter EN and 760A when a compatible analyser requests the standard and value.
SAE rating
SAE uses different timing and voltage requirements. Do not enter a SAE number as EN solely because the amp figure looks familiar.
Legacy European reference
Older products and cross-references can show DIN starting current, which normally produces a different numerical figure.
Warmer-temperature cranking ratings
Marine or cranking-amp figures are normally higher than CCA for the same battery because the test conditions differ.
Using the wrong standard in a workshop tester can distort the calculated state of health and lead to an incorrect diagnosis or warranty decision.
Why AGM, EFB, flooded, GEL and lithium markings matter
| Label marking | What it generally means | Replacement rule |
|---|---|---|
| Flooded / WET / SLI | Conventional liquid-electrolyte lead-acid construction. | Use only where the vehicle or equipment approves conventional flooded technology. |
| EFB | Enhanced Flooded Battery with improved cycling and charge acceptance. | Do not downgrade an EFB application to a conventional flooded battery. |
| AGM / VRLA | Absorbent Glass Mat, valve-regulated lead-acid construction. | An AGM application must remain AGM unless the manufacturer specifies otherwise. |
| GEL / VRLA | Valve-regulated lead-acid with gelled electrolyte. | Use the exact approved GEL charge profile and application. |
| LiFePO4 / Lithium | Lithium chemistry with battery-management protection. | Use the approved BMS, charger, voltage and equipment-specific pack. |
Two products can share the same 096, L03 or 70Ah description while using different internal construction and charging requirements.
Dimensions, case size, layout, terminals, hold-down and venting
Dimensions in millimetres
Normally shown as length × width × total height. Check whether the published height includes the terminals.
Case or box size
Describes a physical family. It does not confirm polarity, technology, Ah, CCA or vehicle suitability.
Terminal position or polarity
Shows where positive and negative are positioned from the catalogue's viewing direction. Use the diagram, not memory.
Terminal type
European posts, smaller JIS posts, threaded studs, motorcycle terminals and SLA tabs require different connectors.
Hold-down or base type
Identifies how the case can be clamped or restrained. Equal outer dimensions do not guarantee the same base.
Vent port or connection
Boot, cabin, leisure and specialist installations may require an approved external vent tube on a particular side.
Standard flooded, EFB and AGM batteries can all exist in the same physical L03 case. The complete electrical and technology specification still has to match.
Why these markings cannot be decoded with one universal chart
Serial or traceability number
Identifies production information for quality control and warranty investigation. Its format varies by manufacturer and factory.
Manufacturing or inspection code
The code may be printed, embossed, laser marked or included in the serial. Do not infer a date from an internet chart unless it applies to the exact brand and product generation.
QR or data-matrix code
It can link to product information, logistics data or internal traceability. It is not automatically a vehicle battery-registration code.
Vehicle battery-management code
Some vehicle systems use a battery-specific registration code after replacement. This is separate from an ordinary retail QR code.
Batch or production-lot code
Helps a manufacturer trace materials and production. It is not usually a customer-facing replacement specification.
Purchase record
Keep the order confirmation, invoice and fitting record. A manufacture code does not replace proof of purchase for a claim.
Use the exact replacement and registration procedure for the vehicle. Some aftermarket QR codes are intended only for internal or product-information use.
What the common safety pictograms are telling you
Wear eye protection
Battery acid, arcing and an explosion can injure the eyes. Wear suitable PPE when handling or working near a battery.
No smoking, flames or sparks
Lead-acid batteries can release flammable hydrogen, especially while charging or when overcharged.
Explosive-gas warning
Ventilate the charging area and avoid making or breaking live connections that could create a spark near the battery.
Read the instructions
Follow the battery, charger, vehicle and equipment manuals for installation, charging and emergency procedures.
Do not place in domestic waste
Used batteries require an authorised collection and recycling route rather than a household bin.
Recyclable
Lead, plastic and other battery materials can be recovered through a proper battery-recycling system.
Contains lead
The Pb symbol identifies lead content and reinforces the need for controlled handling and recycling.
Corrosive and electrical hazards
Avoid electrolyte contact and terminal short circuits. Remove jewellery and use suitable insulated tools.
A 12V battery can supply enough fault current to melt tools, cause severe burns, ignite wiring and trigger an explosion.
Turn the label into a clear support message
Enter the details you can read from the battery. The tool creates a structured summary to copy into our contact form. It does not confirm compatibility.
Record the complete battery specification
Photographs and details that reduce back-and-forth
Complete front label
Include the full part number, voltage, Ah, CCA and technology.
Top view of both terminals
Show positive and negative positions, cable routing and terminal type.
Battery installed in the tray or box
Show the hold-down, available space, cover and nearby metalwork.
Vent connection
Show any vent tube, elbow, plug and the side on which it connects.
Vehicle or equipment details
Send the registration, VIN, make, model, year, engine or equipment model.
Measured dimensions
Record length, width and total height to the top of the terminals.
LS096, 096, 096AGM and 760A EN each communicate different information. A close crop showing only “096” or “760A” may not be enough to identify the correct replacement.
What not to assume from the wording on a battery
Standard, EFB, AGM and reversed-layout versions can differ.
CCA, technology, rate, size, terminals and duty can differ.
The rating standard is part of the result.
AGM is a distinct valve-regulated technology and charging requirement.
The construction code needs formal or manufacturer data.
It may be internal, logistical or a product-information link.
Serial and production formats vary by manufacturer and generation.
A previous owner or workshop may already have fitted the wrong product.
Polarity, terminals, hold-down, technology and venting can still be wrong.
It normally means no routine water topping—not no maintenance at all.
Starting margin and reserve capacity are separate specifications.
Use an authorised battery collection and recycling route.
Battery label FAQs
What is the most important number on a battery label?
There is no single most important number. Use the complete manufacturer part number and confirm the application, voltage, technology, Ah, CCA standard, dimensions, layout, terminal type, hold-down and venting.
What does a UK battery code such as 096 mean?
It is a familiar UK aftermarket reference for a battery family. It helps recognition but does not by itself confirm flooded, EFB or AGM technology, terminal layout or vehicle fitment.
Why should I quote the letters before the battery number?
Prefixes and suffixes identify the manufacturer range, technology or exact product variant. Removing them can turn a specific part number into an ambiguous short code.
What does ETN stand for?
ETN means European Type Number. It is a nine-digit battery identification system developed as a more detailed successor to the older DIN number.
How do I read the first three ETN digits?
They indicate the voltage family and nominal capacity. For common 12V examples, 560 represents 60Ah and 660 represents 160Ah at the 20-hour rate.
What do the middle three ETN digits mean?
They form a unique code linked to construction and features such as endurance, cold-cranking level, vibration, lid, terminals and clamping. Use manufacturer or formal index data.
What do the last three ETN digits mean?
They commonly identify cold-cranking performance in 10A steps. For example, 076 represents 760A. Confirm the manufacturer's published EN rating because legacy standards can differ.
Can an ETN prove that a battery fits my car?
No. Use a trusted registration, VIN or make-and-model lookup, then confirm the physical installation and complete specification.
What does 70Ah mean on a battery?
It is the battery's rated charge capacity under the stated discharge test, commonly the 20-hour rate for automotive and leisure products. It is not guaranteed runtime at every load.
What does 20HR or C20 mean?
It means capacity was measured over a 20-hour discharge to a specified cutoff voltage. A 70Ah C20 example uses a 3.5A test current.
What does 760A EN mean?
It means the battery is rated for 760A cold-cranking performance under the EN test standard. Both the number and the EN standard are needed for comparison and testing.
Is 760A SAE the same as 760A EN?
No. EN and SAE use different timing and voltage conditions. Do not enter one standard as the other in a battery analyser.
What does AGM mean on a battery?
AGM means Absorbent Glass Mat. It is a valve-regulated lead-acid technology with the electrolyte held in glass-mat separators. AGM applications should remain AGM.
What does EFB mean on a battery?
EFB means Enhanced Flooded Battery. It offers greater cycling and charge acceptance than a conventional flooded battery and is commonly used in Start Stop and high-demand applications.
What does VRLA mean?
VRLA means Valve Regulated Lead-Acid. AGM and GEL are VRLA technologies with pressure-relief valves and no routine water topping.
Does maintenance-free mean I never need to charge the battery?
No. It normally means no routine electrolyte topping. Maintenance-free batteries still need correct charging, storage, inspection and testing.
What do the battery dimensions mean?
They are normally length, width and total height in millimetres. Confirm whether the height includes the terminals and check clearance, layout and restraint.
What does layout 0 or layout 1 mean?
It identifies terminal positions from the catalogue's stated viewing direction. On many European products, layout 0 has positive on the right and layout 1 positive on the left, but always use the actual diagram.
What does terminal T1 or T3 mean?
It identifies a terminal design. T1 commonly refers to the larger European taper post, while smaller JIS-style posts use another terminal designation. Check the product drawing.
What does B13 mean?
B13 identifies a common European lower case ledge used by a base clamp. The vehicle tray and clamp must be compatible.
What is the serial number used for?
It supports manufacturer traceability, production records and warranty investigation. Its coding format varies by manufacturer and factory.
How do I read the battery manufacture date?
Use the exact manufacturer's coding guidance or ask the supplier. Printed and embossed date or lot codes are not standardised across all brands and product generations.
Is the QR code on the battery a BMS registration code?
Not automatically. It can be used for internal traceability, logistics or product information. Use the vehicle-specific registration procedure and approved code.
What is a BEM code?
It is a battery-management identification code used by selected vehicle systems, particularly certain VAG applications, during replacement registration. It is not the same as every retail QR or serial code.
What does Pb mean on a battery?
Pb is the chemical symbol for lead. It identifies lead content and reinforces the requirement for controlled handling and recycling.
Can a battery with the same label ratings still be the wrong size?
Yes. Equal voltage, Ah and CCA do not guarantee matching dimensions, polarity, terminals, hold-down, venting or cable reach.
Can a battery with the same size still be the wrong technology?
Yes. Flooded, EFB and AGM products can share common case families. The vehicle's required technology must be retained.
What battery-label photos should I send for compatibility help?
Send the complete front and top labels, both terminals from above, the battery in its tray, the restraint and vent tube, plus the vehicle or equipment details and measured dimensions.
Technical sources & review information
Last source check: 29 July 2026
Research basis: Primary manufacturer, regulator and equipment-maker guidance.
Editorial status: Prepared for final Lucas Batteries UK approval before publication.
- GS Yuasa — Guide to understanding battery specifications
- GS Yuasa — Automotive battery standards and part numbers
- VARTA — BEM coding and battery replacement
- Exide — B24 case, polarity, terminal and hold-down example
The exact battery datasheet and vehicle or equipment manufacturer's instructions take priority. External source pages and product specifications can change.
Send the complete label and application details
Use our vehicle finder for cars and vans, or send clear battery photographs, the full part number, dimensions and equipment details through our adaptive contact form.