Can I install a higher capacity battery in my Renault 21 2.1 D?

Yes, you can install a higher capacity (Ah) battery as long as the physical dimensions fit your Renault 21 2.1 D battery compartment and the positive terminal position matches.

What battery fits the Renault 21 2.1 D?

The Renault 21 2.1 D requires a battery with the correct capacity (Ah) and Cold Cranking Amps (CCA) for this engine. Compatible batteries offer 70-77 Ah, 640-780 A (CCA), 12 V, case H6/L3, conventional flooded technology. Browse the compatible battery list below.

How many Ah does the Renault 21 2.1 D battery need?

The exact Ah rating for the Renault 21 2.1 D depends on the vehicle's original electrical consumers. Compatible batteries offer 70-77 Ah, 640-780 A (CCA), 12 V, case H6/L3, conventional flooded technology. Use our finder for a precise recommendation.

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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Renault 21 2.1 D

Batteries for Renault 21 2.1 D 72 hp (diesel, 1989-1992)

Renault · 21

Which battery does a Renault 21 2.1 D need?

Specifications and battery: 2.1 D (72 hp)

Renault 21 2.1 D (72 hp, diesel, 1989-1992) takes a conventional 70 Ah, 640 A battery (278 × 175 × 190 mm), with the positive terminal on the right.

Brand: Renault
Model: 21 (B48_)
Built: 09/1989 - 1992
Power: 53 kW / 72 hp
Fuel: Diesel
Engine size: 2,068 cc (2.1 L)
Cylinders: 4
Body type: Hatchback
Drive: Front-Wheel Drive
Engine codes: J8S 600, J8S 740

Battery for this engine

Version	Technology	Capacity	Cold cranking (EN)	Size (L×W×H)	Polarity
Main	Conventional	70 Ah	640 A	278 × 175 × 190 mm	+ on the right

The same batteries also fit the 1.9 D (64 hp), 2.1 D (69 hp) and 2.1 Turbo-D (88 hp) engines of this model.

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

🔧 Battery Expert Advisor

Battery analysis for your Renault 21 2.1 D

Quick answer You need an ordinary lead-acid battery of 70 Ah. Our recommendation: VARTA E13.

VARTAE13

ordinary lead-acid70 Ah640 A278×175×190

€68.90

Buy

Prices and availability updated on 25/10/2026

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

📋 What we found

For your Renault 21 2.1 D we found 9 compatible batteries. This list includes 1 Start-Stop battery and 8 conventional batteries (non Start-Stop).

⚡ Battery type for your vehicle

✓ Your Renault 21 2.1 D does not need a Start-Stop battery. The conventional ones shown fit your vehicle and are the most affordable option. If you want a higher-quality, longer-lasting battery, you can also fit an EFB or AGM as an upgrade — they are fully compatible and last more years.

🔋 Technology (AGM / EFB)

✓ All Start-Stop batteries in the list are EFB. They fit your car if the factory battery was EFB. If your current battery was AGM, check with us before buying: EFB cannot replace AGM.

📊 View AGM vs EFB vs Conventional — full comparison

⭐ Our recommendation

Our recommendation

For your Renault 21 2.1 D we recommend the VARTA E13 (ordinary lead-acid, 70 Ah). It's the battery recommended by the vehicle manufacturer for your Renault 21 2.1 D — 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 4.7/5 by 3 verified customers.
Get it on Tuesday before 5 PM — your product ships tomorrow.

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Verified selection

Class: Car Batteries
Brand: Renault
Model: 21
Engine: 2.1 D

Order now with express shipping: your product ships tomorrow and arrives on Tuesday before 5 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.

Conventional Battery

This is a standard or conventional battery for vehicles without a start-stop system

8 products

Compare the technologies available for your car

A higher technology withstands more charge and discharge cycles, according to manufacturers. If your car has Start-Stop, it needs EFB or AGM.

Conventional (lead-acid) For normal use in cars without Start-Stop. from €61.95 View TUDOR TB740
EFB Up to 2× more cycles than a conventional battery. Good for short trips and city driving. from €95.40 +€33.45 View TUDOR TL700

Comparison table of available products
Category	Make	Reference	Capacity	Cold cranking	Dimensions	Technology	Price
Conventional Battery	VARTA	E13	70 Ah	640 A	278×175×190 mm	Conventional	€68.90	More info
Conventional Battery	VARTA	E11	74 Ah	680 A	278×175×190 mm	Conventional	€74.95	More info
Conventional Battery	VARTA	E44	77 Ah	780 A	278×175×190 mm	Conventional	€85.40	More info
Conventional Battery	TUDOR	TB740	74 Ah	680 A	278×175×190 mm	Conventional	€61.95	More info
Conventional Battery	EXIDE	EB740	74 Ah	680 A	278×175×190 mm	Conventional	€61.95	More info
Conventional Battery	TUDOR	TA770	77 Ah	760 A	278×175×190 mm	Conventional	€81.90	More info
Conventional Battery	TUDOR	TC700	70 Ah	640 A	278×175×190 mm	Conventional	€77.95	More info
Conventional Battery	EXIDE	EC700	70 Ah	640 A	278×175×190 mm	Conventional	€84.70	More info

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.

1 product

Recommended start-stop
Start-Stop battery Tudor TL700 12V 70Ah 760A EFB
- 12 V
- 70 Ah
- 760 A
- EFB
Dimensions 278×175×190 mm

€95.40
Compare

Comparison table of available products
Category	Make	Reference	Capacity	Cold cranking	Dimensions	Technology	Price
Start-Stop & high energy demand batteries	TUDOR	TL700	70 Ah	760 A	278×175×190 mm	EFB	€95.40	More info

Complete your purchase

Chargers

Chargers for your battery

1 product

Battery charger ABSAAR Pro4.0 6/12V 4A Smart Charger
- 6 V
€50.60

Frequently asked questions

: Yes, you can install a higher capacity (Ah) battery as long as the physical dimensions fit your Renault 21 2.1 D battery compartment and the positive terminal position matches.
: The Renault 21 2.1 D requires a battery with the correct capacity (Ah) and Cold Cranking Amps (CCA) for this engine. Compatible batteries offer 70-77 Ah, 640-780 A (CCA), 12 V, case H6/L3, conventional flooded technology. Browse the compatible battery list below.
: The exact Ah rating for the Renault 21 2.1 D depends on the vehicle's original electrical consumers. Compatible batteries offer 70-77 Ah, 640-780 A (CCA), 12 V, case H6/L3, conventional flooded technology. Use our finder for a precise recommendation.
: 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 Renault 21 2.1 D 72 hp (diesel, 1989-1992)

Which battery does a Renault 21 2.1 D need?