A mechanic using a diagnostic machine to inspect a car vehicle engine
Service, Repairs & MOT

Car battery replacement for your Subaru

Get £10 off battery replacements at home with RAC Mobile Mechanics*

  • Top-quality batteries
  • Price includes fitting
  • Maximum convenience

*T&Cs apply. Offer ends 08/09, 09:00.

£245.95

Average price for this repair for your Subaru in the last 30 days^

Trustpilot rating for all RAC Mobile Mechanics.

Why choose the RAC for a car battery replacement?

With RAC Mobile Mechanics, you can avoid the hassle of taking your vehicle to a garage. They can do battery replacement and fitting on your driveway, so you don't even need to leave the house.

We use only quality batteries that meet OEM standards – that means they meet your vehicle manufacturer’s strict quality criteria, with a minimum 3-year warranty as standard. The price includes fitting, ensuring no surprises on the day. No hidden costs, just friendly, honest experts.

Close up of an RAC Mobile Mechanic underneath a car

Our top pick for your Subaru

We’ll come to you at home or work

RAC Mobile Mechanic for your Subaru

At the RAC, we’ve got over 125 years’ experience in offering complete peace of mind to our members. We’re best known for our breakdown service. And now – our new RAC Mobile Mechanics are here to help make every day motoring easier. If you need a service or repair, they’ll come to you at your home or work.

Car battery replacement

From £150^^

£160

If your car won’t start due to a dead or failing battery, our mobile mechanics can test your battery, provide a replacement, and install it on the spot at home or work, saving you the hassle of going to a garage.
*T&Cs apply. Offer ends 08/09, 09:00.

We use original equipment manufacturer (OEM) standard parts, which means every new part will be the same standard and same quality as the original part it replaced.
Our mobile mechanics are friendly, honest, and backed by the RAC.
Close up of an RAC Mobile Mechanic running a vehicle diagnostic check

Vehicle diagnostic check

£99

We’ll spend up to 30 mins checking our car’s onboard management system for faults. We’ll talk you through repairs needed and provide a full report. If any further work is needed, we’ll agree this with you before we start. Any additional work after the first 30 minutes will be priced at £20 per 15 minutes. We’ll agree this with you before proceeding.

We’ll look for any mechanical or electrical problems. If we need to, we’ll also check your car’s onboard engine management system. Depending on your car and issue, this will usually include: – Engine – Power steering – Brakes – Transmission – Exhaust system – Fuel injection system – Cooling system and air flow – Sensors
If we detect any issues, we'll talk through what needs to be repaired. We’ll give you a no-obligation quote to fix it on the spot, if we can. Or we’ll recommend a local RAC Approved Garage, and give you a full error report to take there.

And it’s not just car battery replacements that we can do for your Subaru

Mobile mechanics bring the garage to you, saving you the hassle of getting your car to a garage. If you need a service or repair, they’ll come to you at your home or work.

A close up of an RAC mobile mechanic looking under the hood of a car

What our expert says

A healthy battery will help you avoid breakdowns and keep your car in top condition. An old worn battery can cause starting issues and could fail any time – leaving you stranded.

Nick Mullender

Lead RAC Mobile Mechanic

Try one of our RAC Approved Garages

Peakline Engineering

4.9/5

We collect and drop off with a car transporter free of charge! Timing chains to clutches Every make every model
Threelords, Pendine, Pendine, SA334PU

Londesborough Motor Services

4.6/5

Londesborough Motor Services is a locally owned family run business which has been established for over 30 years. We offer everything for the motorist whether you are a private car owner or operate light to medium commercial vehicles. We also MOT Minibuses and Motor homes. As a member of the Retail Motor Industry Federation we offer all of our customers a guarantee they will receive the highest standards of service. Our team are all fully qualified and our modern workshop is equipped with the latest state of the art equipment. We are proud to have been inspected and certified by the RAC and the AA. We are also part of Trust My Garage. Customer care and satisfaction is our priority, we have a child friendly customer waiting area, a reception area, ample parking and we are also just a short walk to town. While you wait service with 1000's of parts in stock and ready to fit. Great prices on Tyres, exhausts and batteries. Free vehicle health checks.
66 Londesborough Road, Scarborough, YO125AF

Auto Solutions East LTD

4.8/5

AUTO SOLUTIONS is a family run garage which has been trading for over 25 years Based in East Kilbride, we are a well established and reputable company in the local area. All 3 of our time served technicians are IMI registered. We have the latest snap-on 3D wheel alignmetnt system and snap-on diagnostic equipment We cover East Kilbride and surrounding areas for car servicing and repairs, MOT testing and vehicle breakdown recovery. check our 100% feedback . Certificates Our certificate of registration for the Motor Industry Code of Practice means we comply with guidelines set out by the registered body. We are also a Servicesure certified garage which means we offer a national warranty.We offer low cost servicing that won't affect your warranty, meaning you won't have to pay dealership prices. This work is carried out according to the Block Exemption guidelines, which state that if car parts of a similar or better quality are used, then your warranty is unaffected. This allows us to offer you a fantastic service at a fantastic price! MOT Testing in East Kilbride As a VOSA registered testing station, we offer MOT testing in East Kilbride at a competitive price. Our VOSA test station registration number is VApprenticeships We pride ourselves in offering mechanic apprenticeships on an ongoing basis. We feel it is important to bring young talent into the industry and help develop apprentices into fully qualified and professional mechanics that will provide an excellent service for you. To find out how to get involved with an apprenticeship, just send us a message!
20 Albion Way, East Kilbride, G750YN

CS Automotive Vehicle Repair Ltd. T/A CS Autos

5.0/5

Rated 5* on Google an Yell. Discover CS Autos – your go-to destination for premium automotive care without the dealership price tag. At CS Autos, we're dedicated to delivering unmatched service quality, ensuring your vehicle receives top-notch attention every time. Our team of skilled technicians is committed to keeping your vehicle in peak condition, from routine maintenance to specialized repairs. Experience the difference with CS Autos – where excellence meets affordability. We specilise in Mercedes-Benz vehicles with over 25 years main dealer experience we will be able to assist with vehicles ranging from a Smart Car to a Mercedes Sprinter. Our workshop based in Kelvedon, Essex is where your vehicle will be maintained by our expert technicians. We also offer a Fleet management service for business owners who have a large fleet of vehicles.
Ewell Hall Barn, Ewell Hall, Kelvedon, CO59BQ

S H Service Centre @ Mk1

4.7/5

We are an independent garage established in 2007 based in Bletchley, Milton Keynes with a fantastic reputation. Our services include: - Servicing & MOT - Braking Services - Tyre Replacement - Hybrid & EV Servicing
Unit D, Lyon Road, Bletchley, Milton Keynes, MK11EX

Frequently asked questions on car battery

Charging your electric car battery involves:

  • Plugging into a charger: Use a home charger or a charging station.
  • Monitoring charging: Most electric cars have a display to show how charged the battery is.
  • Charging time: This varies depending on the charger and your electric car’s battery. Home chargers typically take six to eight hours. Fast chargers can take 30 to 60 minutes.

Always follow the guidelines for charging.

To change your car key battery:

  • Open the key fob: Use a small screwdriver or coin to open the fob.
  • Remove the old battery: Take note of the battery type.
  • Insert the new battery: Make sure it’s the correct type and is oriented as it should be.
  • Close the key fob: Snap or screw it back together.

Check your car manual for exact instructions.

Yes. You can replace a car battery on your own if you follow these steps:

  • Turn off the engine: Make sure your car is off.
  • Remove the old battery: Disconnect the negative (-) terminal first. Then disconnect the positive (+) terminal. Remove any clamps or brackets holding your car’s battery in place.
  • Install the new battery: Place your new battery in the tray. You can then secure it with clamps or brackets. Connect the positive (+) terminal first. Then connect the negative (-) terminal.
  • Test the battery: Start your car to make sure the battery is working.

If you’re unsure, use a professional service.

Signs you need a new car battery include:

  • Slow engine cranking: The engine takes longer to start.
  • Dim lights: Headlights and inside lights are dimmer than usual.
  • Battery warning light: The battery or charging system warning light is on.

If you notice any of these signs, it’s time to get your battery checked.

The best car battery depends on your car and how you drive:

  • Standard lead-acid battery: Suitable for most cars with regular driving patterns.
  • AGM battery: Ideal for vehicles with high electrical demands or stop-start systems.
  • Deep cycle battery: Used in electric and hybrid vehicles.

Read your car manual or ask a professional for recommendations.

Most car warranties cover battery replacement for a period. This is usually two to three years. Extended warranties may offer you longer coverage. Check your warranty details or talk to the provider for more info.

Yes, it certainly can:

  • Cold weather: Low temperatures can decrease the battery's ability to hold a charge, making it harder to start the car.
  • Hot weather: High temperatures can cause battery fluid to evaporate, leading to potential damage.

Regular checks are important in extreme weather.

Recycling an old car battery is important for environmental reasons as it can be very polluting.

  • Take it to a recycling centre: Many auto part stores and recycling centres take old car batteries.
  • Check local regulations: Some areas have specific guidelines for battery disposal.
  • Use a professional service: Many mobile mechanics and garages offer battery recycling services.
  • Lead-acid battery: Common, cost-effective, and reliable for most vehicles.
  • AGM battery: More expensive. It offers better performance and durability, in vehicles with high electrical demands or stop-start systems.

Talk to a professional to find the best battery for your needs.