Car battery replacement cost UK
Typical fitted price at an independent garage — from a standard battery on an older car to a registered AGM on a stop-start. The battery type decides the bill, and your car decides the type.
- EFB stop-start: £140 – £260
- AGM stop-start & premium: £180 – £300
- Registration included on stop-start cars
A car battery replacement costs £100 – £190 fitted for a standard battery, £140 – £260 for an EFB and £180 – £300 for an AGM at an independent garage — and if your car has stop-start, the last two are your only lawful-to-your-warranty choices. Registration to the car’s electronics is part of the job, not an extra. Check your type below, then compare fitted quotes.
Price ranges are estimates — final quotes come from garages. We may earn a commission when you book through our partners, at no cost to you.
Car battery cost by make and model
Fitted prices at an independent garage, registration to the car included where the electronics require it. Not sure which column is yours? The label on the old battery says — and the type guide below decodes it in one look.
| Model | Standard | EFB (stop-start) | AGM (stop-start / premium) |
|---|---|---|---|
| Ford Fiesta | £100 – £150 | £140 – £210 | £180 – £260 |
| Ford Focus | £110 – £165 | £150 – £225 | £190 – £275 |
| Vauxhall Corsa | £100 – £150 | £140 – £210 | £180 – £260 |
| Vauxhall Astra | £110 – £165 | £150 – £225 | £190 – £275 |
| VW Golf | £110 – £170 | £155 – £230 | £195 – £280 |
| VW Polo | £100 – £155 | £145 – £215 | £185 – £265 |
| Nissan Qashqai | £120 – £180 | £160 – £240 | £200 – £290 |
| Nissan Juke | £115 – £175 | £155 – £235 | £195 – £285 |
| Mercedes A-Class | £130 – £190 | £170 – £260 | £220 – £300 |
| BMW 1 Series | £130 – £190 | £170 – £260 | £220 – £300 |
| BMW 3 Series | £130 – £190 | £175 – £260 | £225 – £300 |
| Audi A3 | £125 – £185 | £165 – £255 | £215 – £295 |
| Honda Civic | £110 – £170 | £150 – £230 | £190 – £280 |
| Toyota Yaris (hybrid) | Hybrid — small 12V AGM auxiliary: £140 – £230 fitted | ||
| Kia Sportage | £120 – £180 | £160 – £240 | £200 – £290 |
| UK average | £110 – £170 | £155 – £235 | £195 – £285 |
Independent garage prices, battery, fitting, registration and old-battery disposal included, VAT included. Main dealers typically charge around 50% more for the same battery. The Yaris hybrid’s 12V auxiliary is separate from its traction battery, which is a different, far longer-lived component.
What affects the price
Battery technology, not battery brand, is the main lever. The columns above are the whole story: a standard flooded battery costs £60 – £110 as a part, an EFB £90 – £160, an AGM £130 – £220. The car dictates which one you’re buying — stop-start systems cycle the battery hundreds of times a day, and only EFB and AGM construction survives that. Brand moves the price by £20; technology moves it by £100.
Size and position add the rest. A bigger engine wants more cold-cranking amps, which means a physically bigger, dearer battery — the quiet reason the premium rows run higher. And while most batteries sit in the open under the bonnet, some live in the boot or under a seat, adding fitting time and the need to keep the car’s electronics alive with a memory saver during the swap.
Registration is part of the job on modern cars. Stop-start and many premium cars track the battery’s age and condition through a battery management system. Fit a new battery without telling that system and it keeps charging for the old, tired one — which quietly shortens the new battery’s life and often leaves stop-start switched off. Every stop-start price on this page is fitted and registered; that phrase is what makes quotes comparable.
Standard vs EFB vs AGM — which one is yours
| Standard (flooded) | EFB | AGM | |
|---|---|---|---|
| Part price | £60 – £110 | £90 – £160 | £130 – £220 |
| Built for | Cars without stop-start | Entry-level stop-start | Heavy stop-start, brake energy recovery, premium cars |
| How to tell | No stop-start button; label has no EFB/AGM marking | “EFB” or “Start-Stop” on the old battery’s label | “AGM” on the label; common on German cars and boot-mounted batteries |
| Typical life | 4 – 6 years | 4 – 6 years under stop-start load | 5 – 7 years |
The thirty-second check that prevents the classic mis-buy: open the bonnet and read the old battery’s label before anyone quotes you. EFB and AGM are printed right on it. If the label’s unreadable, the presence of a stop-start button means the car needs EFB at minimum — and the rule of the next section decides the rest.
The one-way ladder: upgrade yes, downgrade never
Battery types form a ladder — standard, EFB, AGM — and you may only ever step up it. Replacing an EFB with an AGM is a legitimate upgrade some garages recommend for hard-worked stop-start cars. Replacing an AGM with an EFB, or any stop-start battery with a £70 standard one, is the false economy that looks like a saving for exactly one winter: the cheaper battery isn’t built for stop-start cycling and fails early, taking your “saving” and the fitting fee with it.
This is also the honest answer to the tempting online bargain. A standard battery at half the price of the AGM your car specifies isn’t the same product in a different box — it’s the wrong part. A fair garage will refuse to fit it; a fairer one will explain why before you’ve bought it. If a quote comes in suspiciously below the ranges above for a stop-start car, the first question is which rung of the ladder it’s actually pricing.
Battery registration — the ten minutes that doubles battery life
On cars with battery management — effectively all stop-start cars and most German models — the ECU adapts charging to the battery’s age. As the battery gets older, the car charges it harder to compensate. Fit a new battery without registering it and the car keeps applying old-battery charging to a new battery: it gets cooked gently, stop-start often stays disabled, and the battery that should last six years does three. Registration takes about ten minutes with a diagnostic tool and should be included in the fitted price; as a standalone job it’s £20 – £50.
This is the single most common corner cut on cheap battery fitting — not out of malice, but because the car starts fine without it and the consequence arrives years later, as a warranty argument about a battery that “failed early”. When comparing quotes for a stop-start car, “fitted and registered” is the phrase to insist on. Check your car and we’ll tell you whether yours is one that needs it.
- EFB battery, quality brand: £105 – £150
- Fitting with memory saver connected: £40 – £55
- Registration to the battery management system: £10 – £25
- Old battery disposal: included
Typical total: £155 – £230
Matches the £155 – £230 Golf EFB range above. The same car with a factory AGM would run £195 – £280; a boot-mounted battery adds fitting time at the top of the range.
Flat battery or charging fault? Test before you buy
A flat battery is a symptom with four possible causes, and only one of them is cured by a new battery. Before spending £100 – £300, spend nothing: most garages and battery fitters test a battery under load for free, and the result separates a battery that’s dying from a battery that’s being starved or drained.
| What the test shows | The real problem | Typical fix |
|---|---|---|
| Battery fails under load | The battery itself — this page | £100 – £300 by type, fitted |
| Battery healthy, low charging voltage | Alternator or its belt — not the battery | See alternator costs; the pulley or belt is the cheap suspect there |
| Battery healthy, drains overnight | Parasitic drain — a module or light that never sleeps | Diagnostic £40 – £90; the fix is often small |
| Corroded or loose terminals | Connection, not capacity | £0 – £30 — the cheapest impersonator on the car |
The question to ask before you buy: “Was the battery tested under load — and what was the charging voltage with the engine running?” Two numbers, ten seconds to read out, and together they rule the alternator in or out. A single click with no crank is a different story again — that’s starter territory — and a diesel that cranks strongly but won’t fire on a cold morning is a glow plug story, not a battery one.
Where to get it done
| Independent garage | Mobile battery fitter | Main dealer | |
|---|---|---|---|
| EFB fitted, typical | £140 – £260 | £140 – £250 | £210 – £390 |
| Strengths | Best value; free test first; registration kit on hand | Comes to the dead car — the right call when it won’t start at home | Genuine battery; the route while under warranty |
| Watch for | Confirm registration is included on stop-start | Check they register the battery, not just fit it | Same technology, roughly 50% more |
The mobile fitter is this repair’s genuine third player — a battery is the one part that fails somewhere inconvenient by definition. National fast-fit chains also price batteries keenly; the ladder rule and the registration question apply to them exactly as they do to everyone else.
6 signs your car battery is failing
- Stop-start quietly stops working — the earliest warning most drivers get, because the car protects a weakening battery by refusing to cycle it. Free load test confirms; EFB £140 – £260 if it’s time
- Slower, heavier cranking on cold mornings — the classic, and the one winter turns into a no-start. Test first: terminals £0 – £30 impersonate this exactly
- Battery warning light while driving — usually the charging system, not the battery. Check alternator costs before buying a battery
- Electrical gremlins — radio resets, flickering lights, warnings that clear on restart — voltage sagging under load. Load test £0; parasitic-drain diagnostic £40 – £90 if it drains overnight
- A swollen case or a rotten-egg smell — physical failure; the battery is finished and shouldn’t wait. Replace now, by type: £100 – £300
- Five-plus years old with winter coming — not a fault yet, but the free test in October is how it stays that way. £0 to test; ask at the annual service
Why batteries die in the first cold week
Cold does two cruel things at once: it slashes the battery’s output and raises what the engine demands, because cold oil is thick oil. A battery at 70% health sails through September and fails on the first frosty Monday — alongside every other 70% battery in the county, which is why fitters’ phones ring off the hook the same week and why “supply issues” appear exactly when you need one. The MOT won’t warn you first, either: the test checks that the battery is secure and not leaking, and never measures its health.
Short trips finish what the cold starts. A battery spends its biggest effort on the first crank and needs twenty-plus minutes of driving to earn it back; a life of ten-minute runs leaves it permanently underpaid. If that’s your car’s week, an occasional longer run — or a £30 smart trickle charger — is the cheapest battery extension on the market.
How to pay less
Test before you buy — it’s free. A load test takes minutes and separates a dying battery from corroded terminals, a tired alternator or an overnight drain. Skipping a free test to buy a £200 battery is the most expensive shortcut on this page.
Buy in autumn, not in the queue. The same battery costs the same in October as in the first week of frost, but October has stock, appointment slots and time to do the registration properly. Winter’s queue is where corners get cut and prices stop being negotiable.
Match the rung, not the badge. The saving that works is choosing a quality aftermarket battery over a genuine-branded one on the same rung of the ladder — £20 – £40 for an identical technology. The saving that backfires is stepping down a rung. And on stop-start cars, insist on “fitted and registered” in the quote; independent fitting doesn’t affect your warranty rights under block exemption rules.
If the car’s already dead at home, compare a mobile fitter against a recovery-plus-garage price — the callout often costs less than the tow. Just ask the mobile fitter the registration question before booking, not after.
Compare fitted-and-registered quotes from local garages for the exact battery type your car needs — before the cold week books your appointment for you.
Compare quotes from local garages →FAQ
How much does car battery replacement cost in the UK?
£100 – £300 fitted at an independent garage, depending on battery type: £100 – £190 for a standard battery, £140 – £260 for an EFB and £180 – £300 for an AGM. Stop-start cars need EFB or AGM with registration included. Dealers charge roughly 50% more.
How much is a stop-start car battery?
£140 – £260 fitted for an EFB or £180 – £300 for an AGM, registration to the battery management system included. They cost more than standard batteries because stop-start cycles a battery hundreds of times a day and only EFB and AGM construction survives it.
Do new car batteries need to be coded or registered?
On stop-start cars and most German models, yes — the car adapts charging to the battery’s age, so an unregistered new battery gets charged like an old one, shortening its life and often leaving stop-start disabled. It takes about ten minutes and £20 – £50 standalone; fitted prices here include it.
How long does a car battery last?
Four to six years for standard and EFB batteries, five to seven for AGM — less on a diet of short trips, which never let the battery recover the energy each start costs. The free load test any garage can do in minutes is how you find out where yours is on that curve.
Can I replace a car battery myself?
On an older car without stop-start, yes — it’s a spanner job, minding the disposal. On stop-start and premium cars it’s half a job: without registration the new battery is mischarged from day one, and without a memory saver some cars lose window, radio and adaptation settings.
Why did my battery die suddenly with no warning?
It almost certainly warned you quietly: stop-start switching itself off is the classic early sign, months before a no-start. Cold then triggers the failure because low temperatures cut the battery’s output just as the engine demands more — which is why batteries “suddenly” fail in the first frosty week.
How do I know if it’s the battery or the alternator?
Two numbers settle it: a load test on the battery, and the charging voltage with the engine running. Battery fails under load — it’s the battery. Battery healthy but charging voltage low — it’s the alternator side, where the belt or pulley is the cheap suspect to rule out first.
Does the MOT check the battery?
Only that it’s secure and not leaking — the MOT never tests battery health or cranking power. A car can pass its MOT on Tuesday and fail to start on Friday’s frost with no contradiction. The free load test, not the MOT, is the battery’s real annual check.
What happens if I fit the wrong type of battery?
Fitting a standard battery to a stop-start car is a one-winter economy: it isn’t built for constant cycling, fails early, and usually disables stop-start meanwhile. Upgrading EFB to AGM is fine; downgrading any rung is not. The old battery’s label tells you the minimum your car accepts.
Will stop-start work again after a new battery?
Yes — provided the battery is the right type and registered. Stop-start disables itself to protect a weak battery, and returns once the car sees a healthy, correctly registered one. If it stays off weeks after a new battery, the registration step was likely skipped.
Is a swollen car battery dangerous?
Treat it as finished, immediately. A swollen case or rotten-egg smell means the battery has overheated or overcharged internally — it can vent acid or gas and shouldn’t be charged or jump-started. Replacement is the only fix, and it’s also worth having the charging voltage checked for the cause.
Do hybrids have a normal car battery too?
Yes — alongside the traction battery, hybrids carry a small 12V auxiliary battery, usually AGM, that boots the car’s electronics: £140 – £230 fitted on a Yaris hybrid. It fails like any 12V battery does. The traction battery is a separate, far longer-lived component with its own warranty.