Battery Varta B31 SLI 45Ah

Name: Battery Varta B31 SLI 45Ah
Brand: Varta
SKU: B31
Price: 50.58 EUR
Availability: InStock
Rating: 5 (2 reviews)

€50.58

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Rating:

(read 2 reviews)

45
Ah

12
V

330
A(EN)

Dimensions: 238 × 129 × 227 mm.
Capacity: 45Ah · 12V.
Starting power: 330A. Positive terminal on the right.

VARTA B31 · conventional flooded lead-acid.

EAN/GTIN: 4016987119631

Battery VARTA B31 12V 45Ah 330A SLI

The VARTA B31 12V 45Ah 330A car battery has a clearly identified part number to help you choose the correct replacement. It uses conventional flooded lead-acid technology and measures 238 × 129 × 227 mm (length × width × height). Compare these details with the installed battery and the vehicle manufacturer's requirements before ordering.

For starting compatible vehicles without Start-Stop that accept a conventional flooded battery. It is not AGM or EFB and must not replace either technology when required by the vehicle.

Starter battery car Varta B31

The Battery Varta B31 series Dynamic SLI has a capacity of 45Ah with a starting power of 330A. Its measures are: 238x129x227 mm with terminals narrow. Battery is a starting battery and is used in compatible vehicles.

Specifications of the B31

Brand	Varta
Reference	B31
Model	545 155 033
Volt	12 V
Capacity	45 Ah
Boot	330
Polarity	Positive Right
Long	238 mm
Width	129 mm
High	227 mm
Weight	Returned 11.68 Kg

Batteries Varta

Battery Varta B31 belongs to the range of batteries VARTA Dynamic SLI, designed for starting vehicles. Deliver superior performance and exceptional for the requirements of more demanding energy of passenger cars.

Incorporate the technology grid PowerFrame® with which you get maximum cranking power, a fast reload and better resistance to the corrosion, lengthens its useful life.

Battery Varta Dynamic SLI maintenance-free.

Choose the right replacement for your car

Before fitting the VARTA B31, check the 238 × 129 × 227 mm space, positive terminal position, connections and hold-down as well as the 45Ah capacity and 330A starting current. The same car model may require different batteries depending on engine, year and equipment. Fuel type or engine displacement alone does not establish compatibility.

Capacity and starting current are different ratings

The 45Ah rating is nominal capacity; 330A describes cold cranking current. When comparing 45Ah car batteries, check technology and dimensions too: similar or higher capacity does not automatically make a battery suitable.

Replacement, charging and maintenance

Vehicles with a battery management system may require battery registration or adaptation using diagnostic equipment after replacement. Use a charger suitable for the battery voltage and technology and follow the battery and vehicle instructions. Consult a qualified professional if the installation or configuration is uncertain.

Price, availability and online ordering

Check the VARTA B31 price, current availability and buying options on this page. The order total, delivery charges and available shipping options are confirmed in the basket before you place the order. Published product reviews can help you assess other buyers’ experiences, but they do not establish compatibility with your particular car.

Questions before buying

Which VARTA B31 battery am I buying?

Part number B31 identifies this 12V, 45Ah, 330A battery measuring 238 × 129 × 227 mm. Capacity and starting current are separate ratings.

Are matching dimensions enough?

No. Required technology, voltage, polarity, terminals and mounting must also match, with suitable electrical ratings. Do not downgrade an AGM or EFB technology required by the vehicle.

How do I check polarity?

Positive terminal on the right. Check the terminal positions on the actual battery and their orientation in the vehicle; do not rotate the battery to compensate for cables that do not reach.

If searching for VARTA Blue Dynamic B31, use part number B31 and its specifications to identify the replacement. VARTA has brought its former conventional Silver Dynamic, Blue Dynamic and Black Dynamic ranges together as Dynamic SLI. A new range name does not change a conventional battery into AGM or EFB.

Compare within the right category

Official VARTA information: VARTA B31

Reference B31

Data sheet

Capacity (Ah): 45
Volts (V): 12
Technology: Conventional
Starting Power (CCA): 330
Length (mm): 238
Width (mm): 129
Height (mm): 227
Weight (kg): 11.68

JUAN B.

Verified purchase

03/31/2026

Very well

Very good, quick and perfect

Rafael S.