Varta B31 – starter battery for cars and vans – 45Ah 12V 330A

Summary: One code, one battery: Varta B31, 45Ah 12V 330A, for cars and vans. Weight is 11.3 kg, worth knowing before you lift it out of the tray.

Using it day to day: practical tips

Classic cars stored in a garage all winter are famous for flat batteries in spring. Smear a little terminal grease on both posts once everything is tight. Forgetting to tighten the hold-down lets the battery rattle loose.

Specifications table

How lead-acid batteries work and how to look after them

Some lead-acid batteries have removable caps, others are sealed for life. Conventional batteries deliver high current at a modest price. Pour in only distilled water, and only once the charge has finished.

Other options with identical dimensions

If you prefer another make, these fit the same space with the same terminal side.

Kronobat PB-45.0FKronobat PB-45.0TVarta B32

Questions and answers

Varta B31: what it is and who it suits

Plenty of family hatchbacks and small vans leave the factory with a battery just like the Varta B31. Case size, terminal side and cranking amps decide the fit, and every one of those is listed below. With the old battery's label in your hand, finding its match at baterias.online is straightforward.

Compact by the standards of cars and vans, with 45Ah.

Explore more

You will find this battery in the cars and vans section of baterias.online, ready to order. Other Varta models are linked below if you need a different size from the same maker.

• Compare alternatives for cars and vans
• The complete Varta range

Make sure it fits your vehicle or equipment

• ✓ Cranking power on cold mornings: 330A. Big engines in harsh winters call for a generous figure.
• ✓ Check that the alternator or controller suits lead-acid.
• ✓ Dimensions to compare: 238 × 129 × 227 mm. Do not forget the base ledge, which the hold-down clamp grips on many vehicles.