Lewis Motor Services
Service · Batteries

Battery test & replace, same day.

Dead battery on the driveway? Slow crank in the morning? We test on-site, supply the right battery for your vehicle, fit it and code it where the vehicle needs it - usually within the hour.

Modern vehicles are fussy about batteries. Stop-start cars need EFB or AGM. Some need the new battery coded to the BMS so the charge profile resets correctly. Fit the wrong type and the system won’t charge properly - or the stop-start function never works again.

We carry quality batteries to cover most cars and vans, plus commercial-spec batteries for HGVs. We test the existing battery and the alternator before assuming the battery is dead - sometimes it’s a charging fault, and a new battery just kills itself on the same problem.

Most replacements take 30 minutes from arrival. We code where the vehicle requires it (BMW, Mercedes, VAG, Ford, Volvo and most modern stop-start vans) and recycle your old battery for you.

When to call

Tell-tale signs.

Anything from this list is worth a phone call. We’ll talk it through and only drive out if there’s a job to do.

01

Slow crank in the morning

Battery on its way out, or a parasitic drain. We test under load and pin down which.

02

Stop-start no longer working

The car’s decided the battery isn’t healthy enough for stop-start. Replace and re-code.

03

Won’t start at all

Click-click-click or dead silence. Often a battery, sometimes a starter. We diagnose first.

04

Battery warning light

Charging fault, not necessarily a battery. We test alternator output before condemning the battery.

05

Fleet of vans / cars

Annual battery health check across a fleet catches the ones that’ll fail this winter.

06

HGV not turning over

Commercial-spec batteries from the van. We can pop one in at the yard or at the roadside.

Coverage

Where we come to you.

Newport and the surrounding NP postcodes. Click through for the local detail.

FAQs

Battery replacement FAQs.

We carry the common sizes for petrol, diesel and stop-start cars, plus a smaller stock of HGV batteries. If we don’t have it, we can usually source same day.
Mon-Sat 08:00-18:00
Keeping you moving

Need it back on the road?

Mobile mechanic covering Newport and the surrounding areas. Call now and we’ll talk it through - no quote charges, no obligation.