Lucas batteries

This is where you will find Lucas starter batteries for conventional and classic cars. They are 12 V lead-acid units for engines without Start-Stop. Use each product page to compare capacity, cold cranking, dimensions and polarity with the battery you already have.

Torn between two options? Start with the size: a battery that does not fit the tray is no use, however good it is.

How to choose a Lucas battery for your car

Begin with the battery that comes out of the car. Its label tells you almost everything you need: voltage, capacity in Ah and cold cranking current. With those three figures and a tape measure, most of the decision is already made.

The figures worth comparing

• Capacity (Ah): equal to or slightly above the original. A few extra Ah give headroom if the car sits unused for weeks.
• CCA (EN): the current it delivers in the cold. For diesel engines or cold regions, do not go below the original rating.
• Dimensions: length, width and height, plus the base ledge if the tray uses it as a clamp.
• Polarity: note which side the positive post sits on; if the cables do not reach, the battery will not work.

For cars without automatic engine shut-off, lead-acid is the right technology. If your car has Start-Stop, look at Start-Stop AGM and EFB batteries instead.

Frequently asked questions

Is a Lucas battery suitable for a classic car?

Yes, as long as voltage, size and polarity match. Many 12 V classics use conventional formats; older ones run on 6 V and need a different battery. See the options in classic car batteries.

What if the car stands still for long periods?

A starter battery slowly loses charge even when it is not used. A maintainer connected over winter stops it dropping too low; you will find them under battery chargers.

What else should I know about Lucas?

The Lucas brand page sums up its background and technology.