Last updated: July 2026. Every price on this page was checked against the named UK sources on 8 July 2026.
A full EV battery pack replacement costs £5,000–£15,000 in the UK according to Bumper, but full replacements are “relatively uncommon”: batteries are warrantied for 8 years/100,000 miles as standard, and the average EV battery repair booked on FixMyCar is just £146.
Read the repair and warranty sections before pricing a full pack: most owners never buy one.
Price basis: figures are shown as the named sources publish them. Where a source states whether VAT is included we say so; where it does not, treat the figure as indicative and ask for a VAT-inclusive quote. Garages often quote without VAT, so 20% may be added to the bill. We label estimates, marketplace averages and real invoices separately — why that distinction matters.
EV battery replacement cost by model
| Model | Typical pack cost | Source |
|---|---|---|
| Nissan Leaf 24 kWh (OEM, with £1,000 old-battery cashback) | £4,920 | Bumper |
| Nissan Leaf 40 kWh (OEM) | £6,500–£7,500 | Bumper |
| Renault Zoe | £4,500–£9,000 | Bumper |
| Tesla Model 3 | £6,000–£10,000 | Bumper |
| Fiat 500e / MINI Electric | £3,000–£5,000 | Bumper |
| BMW iX / Audi Q8 e-tron | £12,000–£18,000 | Bumper |
Size drives price: Bumper puts a ~50 kWh pack around £5,000 and 100+ kWh packs over £11,000, with labour adding £1,000–£2,000 on a Leaf swap. Wider published ranges for context: £1,000–£10,000 (FixMyCar) and £800–£7,000 (ClickMechanic). The lower ends reflect smaller and older packs.
Repair first: most battery problems are not the pack
The number that matters most on this page: the average electric car battery repair booked on FixMyCar costs £146. Packs are built from modules and cells, and FixMyCar notes an individual cell “can be replaced for much less” than the whole battery. Third-party and refurbished packs are the middle path: £3,000–£8,500 for a Leaf depending on size (Bumper) against £4,920–£9,500 OEM.
Check the warranty before pricing anything
Nearly every EV sold in the UK carries an 8-year/100,000-mile battery warranty. The RAC’s manufacturer table lists that cover for Audi, BMW, Citroën, Fiat, Hyundai, Kia, Mercedes, MINI, Nissan, Peugeot, Renault, Škoda, Vauxhall and VW (MG: 7 years/93,000 miles; Tesla Model S/X: 8 years/150,000 miles). The warranties typically guarantee at least 70% of original capacity, so a pack that degrades below that inside the period is the manufacturer’s bill, not yours.
How likely is a replacement, really?
Bumper calls full replacements “relatively uncommon”, and the RAC’s degradation guidance says packs last “well in excess of 10 years or 100,000 miles”. Its example puts an eight-year-old Leaf at roughly 20% capacity loss, degraded but far from dead. For Teslas, Bumper cites lab data of 80% retention at 500,000 miles. The realistic scenarios for a paid replacement are accident damage, high-mileage older cars outside warranty, or an early fault just past the cover period.
What drives EV battery pricing
- Pack size: ~£5,000 at 50 kWh to £11,000+ past 100 kWh (Bumper).
- OEM vs third-party/refurbished: £1,000–£2,000 saving on a Leaf pack (Bumper).
- Labour: £1,000–£2,000 on top for the swap itself (Bumper, Leaf figures).
- Repair vs replace: module or cell-level work changes the bill by an order of magnitude.
- Old-battery value: Nissan’s £1,000 cashback for the old Leaf pack shows cores have worth; ask.
Frequently asked questions
Will I ever actually pay for an EV battery?
Statistically unlikely within the first 8 years/100,000 miles. That is warranty territory with a 70% capacity guarantee. Paid replacements concentrate in older, high-mileage or accident-damaged cars.
My range has dropped: is the battery dying?
Gradual range loss is normal degradation (the RAC’s example: ~20% on an eight-year-old Leaf). A sudden drop or error messages point to a fault, often repairable at module level rather than a £5,000+ pack.
Does a dead battery write the car off?
On older EVs a £5,000+ OEM pack can exceed the car’s value: the same 50–60% maths as any big repair. Refurbished packs and module repairs change that calculation; price all three before deciding.
Are second-hand packs safe to buy?
Reputable third-party and refurbished packs (£3,000–£8,500 for a Leaf, per Bumper) come tested and warrantied: ask for the warranty terms and the pack’s state-of-health report in writing.
Related guides
- All electric and hybrid cost guides
- Hybrid battery replacement cost
- Is my car worth repairing? The 60% rule
- EV charging port repair cost
Sources: Bumper EV battery cost guide, Bumper Leaf guide, FixMyCar battery guide, the RAC on EV battery life and ClickMechanic, all checked 8 July 2026. Bumper Tesla figure re-checked and corrected 14 October 2026. See how we verify prices.