Does the Bentley Flying Spur 4.0 Flex need an AGM or EFB battery?

If your Bentley Flying Spur 4.0 Flex has start-stop, regenerative braking or many electrical accessories, you will need an AGM or EFB battery. Check your vehicle's technical specifications.

What type of battery does my car need?

You need the make, model and engine. If your car has Start-Stop (the engine switches off at traffic lights), it needs an EFB or an AGM battery, depending on what it came with: if it has an AGM, fit another AGM; if it has an EFB, another EFB or an AGM. On cars with battery management (BMW, Mercedes, VAG group…), moving from EFB to AGM requires coding the new battery. Without Start-Stop, a conventional battery is fine, or an EFB or AGM if you want a longer life.

What is the difference between AGM, EFB and standard batteries?

A conventional (lead-acid) battery is for cars without Start-Stop. An EFB is a reinforced conventional battery for basic Start-Stop. An AGM offers the highest performance and is fitted as standard on cars with advanced Start-Stop, regenerative braking or high electrical demand. Replacement rule: an AGM only with another AGM; an EFB with another EFB or an AGM; a conventional battery with any of the three. Never move down in technology.

How do I find the right battery for my vehicle?

Use the search tool by selecting your vehicle's make and model. Our system automatically filters compatible part numbers verified by our technicians. If you have any questions, contact us via WhatsApp.

What warranty do the batteries have?

All our batteries come with the legal guarantee provided by consumer law against manufacturing defects. If a battery has a manufacturing defect, it will be replaced at no cost to the user.

How long does it take for the battery to arrive?

Under normal circumstances, batteries usually arrive within 1 to 2 days of ordering. However, there are some cases where delivery may take a little longer: peak seasons (Black Friday, Christmas, etc.), palletized shipments, occasional stock shortages, etc.

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Bentley Flying Spur 4.0 Flex

Batteries for Bentley Flying Spur 4.0 Flex 528 hp (petrol/ethanol, from 2016)

All engines and prices for this model: battery Bentley Flying Spur →

Bentley · Flying Spur

Which battery does a Bentley Flying Spur 4.0 Flex need?

Specifications and battery: 4.0 Flex (528 hp)

Bentley Flying Spur 4.0 Flex (528 hp, petrol/ethanol, from 2016) uses a 95 Ah, 850 A AGM battery (353 × 175 × 190 mm), with the positive terminal on the right. A conventional battery is enough; for a longer life, an EFB or AGM with the same dimensions also works. It also has an auxiliary battery: a conventional 53 Ah, 540 A battery (207 × 175 × 190 mm). (CYCA)

Recommended battery for this engine Start-Stop battery Varta A5 Dynamic AGM 12V 95Ah 850A AGM €192.59 incl. VAT

View battery →

Brand: Bentley
Model: Flying Spur (4W_)
Built: 06/2016 - 2026
Power: 388 kW / 528 hp
Fuel: Petrol/Ethanol
Engine size: 3,993 cc (4 L)
Cylinders: 8
Body type: Saloon
Drive: All-wheel Drive
Engine codes: CYCA
Start-Stop battery: Not required

Battery for this engine

Version	Technology	Capacity	Cold cranking (EN)	Size (L×W×H)	Polarity
Main	AGM	95 Ah	850 A	353 × 175 × 190 mm	+ on the right
Auxiliary	Conventional	53 Ah	540 A	207 × 175 × 190 mm	+ on the right

This engine shares its battery with the 4.0 FLEX (507 hp), 4.0 V8 (507 hp), 6.0 FLEX (616 hp), 6.0 FLEX (625 hp) and 2 more: the compatible batteries are exactly the same.

Data: vehicle specifications and the battery manufacturer's application catalogue.

EFB, AGM or conventional for this engine?

Rule of thumb for the Bentley Flying Spur 4.0 Flex: fit the same technology as the original or better (conventional → EFB → AGM), with equal or higher capacity and cold cranking amps, and respect the size and terminal position of around 95 Ah.

🔧 Battery Expert Advisor

Battery analysis for your Bentley Flying Spur 4.0 Flex

Quick answer You need an AGM battery of 95 Ah. Our recommendation: VARTA A5. For the auxiliary battery we recommend EXIDE EA530 of 53 Ah.

Batteries in your Bentley Flying Spur 4.0 Flex

Which battery do you want to replace?

MainOne optionSee all in the list →

Recommended

VARTA A5

AGM95 Ah850 A

353 × 175 × 190 mm

€192.59Buy

AuxiliaryOne optionSee all in the list →

Our recommendation

EXIDE EA530

ordinary lead-acid53 Ah540 A

207 × 175 × 190 mm

€54.95Buy

Prices and availability updated on 13/11/2026

Based on the batteries we found for your vehicle, our experts help you pick the right one.

📋 What we found

For your Bentley Flying Spur 4.0 Flex we found 7 compatible batteries. This list includes 3 Start-Stop batteries and 4 auxiliary batteries.

⚡ Starter or auxiliary battery

We detected an auxiliary battery among the compatible ones. The auxiliary is NOT your main car battery: it is a smaller secondary battery that powers sensitive electronics. Don't mix them up when buying. Usually what fails is the starter battery (the main one), but the auxiliary can also fail. If your vehicle shows intermittent electronic errors but starts fine, it may be the auxiliary; if cranking is weak, it is usually the starter battery.

Your Bentley Flying Spur 4.0 Flex has no Start-Stop, but the manufacturer fits an AGM or EFB battery as standard because the charging system requires it. Choose one with the same technology.

🔋 Technology (AGM / EFB)

✓ All Start-Stop batteries in the list are AGM. If your current battery is AGM, this is the right replacement. If it is EFB, an AGM is also a valid upgrade, but on cars with battery management (BMW, Mercedes, VAG group…) it must be registered and coded for the new technology with a diagnostic tool; otherwise the car keeps charging it as an EFB.

📊 View AGM vs EFB vs Conventional — full comparison

⭐ Our recommendation

Our main recommendation

For your Bentley Flying Spur 4.0 Flex we recommend the VARTA A5 (AGM, 95 Ah). It's the battery recommended by the vehicle manufacturer for your Bentley Flying Spur 4.0 Flex — the OEM equivalent. Varta is the world's leading manufacturer of starter batteries and supplies first-equipment (OEM) batteries to the major European car makers.

Rated 4.0/5 by 8 verified customers.
Get it tomorrow if you order before 6 PM.

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Verified selection

Class: Car Batteries
Brand: Bentley
Model: Flying Spur
Engine: 4.0 Flex

Receive them tomorrow before 5 PM if you order before 6 PM (Spain mainland and Portugal only).

Before you buy: check 3 key points

Although the batteries shown are sourced from information provided by manufacturers, we recommend checking on your current battery:

Dimensions (length × width × height, including terminals and protrusions)
The dimensions shown are the maximum of the battery and include the height of the terminals, small ridges at the base and any lateral protrusions. Measure your current battery completely, from edge to edge. The new one must be the same size or slightly smaller — never larger, it would not fit in the housing.
Positive terminal (left or right viewed from the front — check the battery photo carefully)
Stand facing the battery, with the manufacturer's label facing you and the terminals on top. Locate the terminal marked with +: if it is on your right, it is "positive right"; if it is on your left, it is "positive left". Do not rely on how the battery is mounted in the car — the position is always measured looking only at the battery itself.
Technology (AGM, EFB or conventional — the same as your current battery or higher)
Depending on the manufacturer, the same technology may be labelled differently: AGM may also appear as VRLA, AGM Start-Stop or AGM Deep Cycle. EFB may appear as EF, EFB+ or Enhanced Flooded Battery. Conventional may appear as SLI, Lead-Acid, Wet or Standard. If your vehicle has Start-Stop, the battery must be AGM or EFB — never conventional.

If you have any questions, just ask us and we'll be glad to advise you with no obligation.

Start-Stop & high energy demand batteries

AGM or EFB battery for start-stop vehicles and for cars with high energy demand (many electrical consumers, frequent starts). More charge cycles, better charge recovery and longer service life.

3 products

This engine comes with an AGM/EFB battery as standard: the car's charging system requires it even without Start-Stop. If in doubt, message us and we will confirm.

Comparison table of available products
Category	Make	Reference	Capacity	Cold cranking	Dimensions	Technology	Price
Start-Stop & high energy demand batteries	VARTA	A5	95 Ah	850 A	353×175×190 mm	AGM	€192.59	More info
Start-Stop & high energy demand batteries	EXIDE	EK960	96 Ah	850 A	353×175×190 mm	AGM	€142.70	More info
Start-Stop & high energy demand batteries	TUDOR	TK960	96 Ah	850 A	353×175×190 mm	AGM	€142.70	More info

Auxiliary Battery

Auxiliary battery for vehicles equipped with start-stop systems. It supports the main battery in functions such as engine start, the start-stop system, or additional electrical support.

4 products

Recommended auxiliary
Car battery Exide EA530 Premium 12V 53Ah 540A
- 12 V
- 53 Ah
- 540 A
Dimensions 207×175×190 mm

€54.95
Compare
🔥 Most popular
Car battery Varta C22 Dynamic SLI 12V 52Ah 470A
- 12 V
- 52 Ah
- 470 A
Dimensions 207×175×190 mm

€54.40
Compare
Car battery Varta C30 Dynamic SLI 12V 54Ah 530A
- 12 V
- 54 Ah
- 530 A
Dimensions 207×175×190 mm

€67.40
Compare
Car battery Tudor TA530 High Tech 12V 53Ah 540A
- 12 V
- 53 Ah
- 540 A
Dimensions 207×175×190 mm

€64.40
Compare

Comparison table of available products
Category	Make	Reference	Capacity	Cold cranking	Dimensions	Price
Auxiliary Battery	EXIDE	EA530	53 Ah	540 A	207×175×190 mm	€54.95	More info
Auxiliary Battery	VARTA	C22	52 Ah	470 A	207×175×190 mm	€54.40	More info
Auxiliary Battery	VARTA	C30	54 Ah	530 A	207×175×190 mm	€67.40	More info
Auxiliary Battery	TUDOR	TA530	53 Ah	540 A	207×175×190 mm	€64.40	More info

Complete your purchase

Chargers

Chargers for your battery

1 product

Battery charger ABSAAR Pro4.0 6/12V 4A Smart Charger
- 6 V
€56.95

Frequently asked questions

: Bentley Flying Spur 4.0 Flex (528 hp, petrol/ethanol, from 2016) uses a 95 Ah, 850 A AGM battery (353 × 175 × 190 mm), with the positive terminal on the right. A conventional battery is enough; for a longer life, an EFB or AGM with the same dimensions also works. It also has an auxiliary battery: a conventional 53 Ah, 540 A battery (207 × 175 × 190 mm). Compatible batteries offer 52-95 Ah, 470-850 A (CCA), 12 V, case H4/L1, conventional flooded technology. Browse the compatible battery list below.
: If your Bentley Flying Spur 4.0 Flex has start-stop, regenerative braking or many electrical accessories, you will need an AGM or EFB battery. Check your vehicle's technical specifications.
: You need the make, model and engine. If your car has Start-Stop (the engine switches off at traffic lights), it needs an EFB or an AGM battery, depending on what it came with: if it has an AGM, fit another AGM; if it has an EFB, another EFB or an AGM. On cars with battery management (BMW, Mercedes, VAG group…), moving from EFB to AGM requires coding the new battery. Without Start-Stop, a conventional battery is fine, or an EFB or AGM if you want a longer life.
: A conventional (lead-acid) battery is for cars without Start-Stop. An EFB is a reinforced conventional battery for basic Start-Stop. An AGM offers the highest performance and is fitted as standard on cars with advanced Start-Stop, regenerative braking or high electrical demand. Replacement rule: an AGM only with another AGM; an EFB with another EFB or an AGM; a conventional battery with any of the three. Never move down in technology.
: Use the search tool by selecting your vehicle's make and model. Our system automatically filters compatible part numbers verified by our technicians. If you have any questions, contact us via WhatsApp.
: All our batteries come with the legal guarantee provided by consumer law against manufacturing defects. If a battery has a manufacturing defect, it will be replaced at no cost to the user.
: Under normal circumstances, batteries usually arrive within 1 to 2 days of ordering. However, there are some cases where delivery may take a little longer: peak seasons (Black Friday, Christmas, etc.), palletized shipments, occasional stock shortages, etc.
: In mainland Spain delivery takes 24-48 working hours if you order before 6:00 pm (Monday to Friday) and the battery is in stock; mainland Portugal takes 1 to 4 working days, the Balearic Islands 2 to 5 working days and other EU destinations 4 to 7 working days. Batteries are shipped fully charged and ready to install.

Guides

: This vehicle has no Start-Stop. According to the manufacturer, it does not need to be registered after the change.

Batteries for Bentley Flying Spur 4.0 Flex 528 hp (petrol/ethanol, from 2016)

Which battery does a Bentley Flying Spur 4.0 Flex need?