Worthing | Sompting | West Sussex

Car Battery Replacement & Repairs

Flat battery, warning light on, or a car that won't start? Our team in Worthing and Sompting will test, repair or replace your car battery and get you back on the road fast. We offer vehicle collection and delivery, plus a fleet of hire cars, to make the whole process smooth and hassle-free.

Repairs. Testing. Replacements

Flat Battery or Car Won't Start?

We take pride in getting you back on the road with car battery repairs and replacements you can trust. Transparency matters to us, so we'll always explain what's wrong, why, and what it'll cost before any work starts.

We also offer a 3-year warranty on every battery we fit.

Cedar Garage technician testing a vehicle in the workshop

Signs Your Car Battery Needs Checking

Most car battery faults show themselves in the same few ways. If any of these sound familiar, it's worth getting your battery tested before it leaves you stranded. Please note, this covers the 12V battery in petrol, diesel, hybrid and electric vehicles, not the main high-voltage battery.

Vehicle won't start

Vehicle is struggling to start

Battery warning light is on

Battery keeps going flat

Vehicle won't unlock

Car Battery Services

Every job starts with a proper test, so you're only paying for what your vehicle actually needs.

Jump starting a car with a flat battery
Quick Fix

Jump Start

Flat battery? We'll jump start your vehicle, then test the battery and charging system so you know whether it can be recharged, repaired or needs replacing.

Seat Ibiza car battery
Diagnose & Fix

Terminal & Connection Repairs

Corroded terminals and loose connections can stop a healthy battery from doing its job. We'll clean and repair them, often without the need for a new battery.

Car battery testing
Find The Drain

Drain Testing

Car battery keeps going flat? Our battery drain test traces what's pulling current while your car is parked up, so the real cause gets fixed.

Cedar Garage workshop in Sompting, West Sussex
Like-For-Like or Upgrade

Battery Replacement

Like-for-like or upgraded batteries, including AGM and EFB batteries for stop-start vehicles. Fitted and coded to your vehicle where required, so every system reads the new battery correctly from the first start.

Having problems with your car battery?

Book your vehicle in for a battery test, repair or replacement today.

Collection & Delivery

We can collect your vehicle and deliver it back to you.

Hire Cars Available

Stay on the road with our hire cars.

Smooth, Hassle-Free Service

We make the process easy from start to finish.

Car battery under the bonnet ready for testing
Frequently Asked Questions

Car Battery Repairs & Replacements

How do I know if my car battery needs replacing?

Common signs include the engine turning over slowly, the battery warning light coming on or the car not starting after being left. Most batteries last around five years, so if yours is older, it's worth having it tested.

Do you replace hybrid or electric vehicle batteries?

We replace the standard 12V battery on petrol, diesel, hybrid and electric cars. We can also diagnose and repair faults with the high-voltage battery system in hybrid and electric cars, but we don’t strip down battery packs in house. Find out more about our electric and hybrid vehicle repairs.

What batteries do you fit?

We fit Yuasa batteries, one of the leading brands, and every battery we fit comes with a 3-year national warranty.

Can you code the new battery to my vehicle?

Yes. Many modern cars need a new battery registering so it charges properly, and we do this for every car that needs it.

My battery keeps going flat, should I just replace it?

Not straight away. We'll test the battery first, and if it's healthy, we'll find out what's draining it. It could save you buying a battery you don't need.

My battery warning light is on, do I need a new battery?

Not always. It often means the battery isn't being charged properly, which can be a different fault. Book in and we'll test it and give you a quote for the repair.

Can you replace stop-start batteries?

Yes. Cars with stop-start need a special type of battery, and we'll fit the right one for your car and code it where needed.

Can I wait while my battery is replaced?

Yes. A battery replacement is usually a quick job, so you're welcome to wait with free Wi-Fi and hot drinks. We also offer collection and delivery.

What happens to my old battery?

We'll recycle your old battery responsibly, so you don't need to worry about it.

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Ryan Kerr profile picture
Ryan Kerr
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Took my Tesla Model 3 to Cedar Garage on Tarring Road after an aftermarket body kit's rear diffuser brake light caused hyper-flashing when braking and indicating. Jake was fantastic-he diagnosed the wiring issue quickly and had it sorted on the spot. I was back on the road in under an hour with everything working flawlessly. Jake is a top bloke: friendly, informative, and skilled. Outstanding service!
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Russell Anthony profile picture
Russell Anthony
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Professional service, good communication, affordable, highly recommended.
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John olley profile picture
John olley
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Excellent efficient services carried out by nice people. Would recommend this company who take a pride in looking after their customers.
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Dorothy Smith profile picture
Dorothy Smith
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I feel fortunate to have found Cedar Garage to look after my car. It’s always good to be able to trust the skill, care and attention given as well as friendly communication and advice. They collected and returned my vehicle too, what’s not to like?
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John Rawlings profile picture
John Rawlings
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I have used Cedar Garage for a number of years and this is because in that time I have always been entirely satisfied with the work carried out. The work carried out is of a high standard, competitively priced and is combined with a good customer service
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K Mitch profile picture
K Mitch
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Polite & efficient service from cedar I would recommend these guys for your automotive needs
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Kathryn Masters profile picture
Kathryn Masters
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I use Cedar Garage as the staff are polite informative and friendly. They explain and show you the work that has been done. Always keep you informed on any faults they find. Excellent service.