Charging on the M4: London – Swansea

8 motorway services with rapid chargers on the M4, over 169 miles between London and Swansea. Without a subscription, a kWh costs £0.83 to £0.92. Within 1.2 miles of the motorway, 46 more rapid chargers, from £0.59 per kWh: off the motorway, you often pay much less.

Plan my trip Charger map Motorway charging

Services with chargers8

30 kWh from£24.90

Off the motorway, from£0.59

Price per kWh without a subscriptionnumber of chargers per price

£0.92 median

0.290.380.460.54

£0.83 cheapest£0.92 most expensive

On the M4, from London towards Swansea⇄ Reverse direction

Sort by

Charger	Network	Power	Free · live	No subscription	With subscription	From London
GRIDSERVE · GRIDSERVE MOTO ChieveleyWinterbourne15/34 free · 400 kW · 42 mi	GRIDSERVE	400 kW	15/34	£0.92	—	42 mi
GRIDSERVE · GRIDSERVE Welcome Break Membury WestboundLambourn2/4 free · 50 kW · 54 mi	GRIDSERVE	50 kW	2/4	£0.92	—	54 mi
GRIDSERVE · GRIDSERVE Welcome Break Membury EastboundLambourn2/4 free · 50 kW · 54 mi	GRIDSERVE	50 kW	2/4	£0.92	—	54 mi
Ionity · IONITY ChippenhamCHEAPESTSutton Benger2/6 free · 350 kW · 80 mi£0.48 with Ionity Power	Ionity	350 kW	2/6	£0.83	£0.48Ionity Power	80 mi
GRIDSERVE · GRIDSERVE MOTO Leigh Delamere WestboundSutton Benger14/27 free · 400 kW · 82 mi	GRIDSERVE	400 kW	14/27	£0.92	—	82 mi
GRIDSERVE · GRIDSERVE Roadchef MagorMagor8/14 free · 360 kW · 115 mi	GRIDSERVE	360 kW	8/14	£0.92	—	115 mi
GRIDSERVE · GRIDSERVE MOTO Cardiff WestPentyrch9/20 free · 350 kW · 136 mi	GRIDSERVE	350 kW	9/20	£0.92	—	136 mi
Applegreen Fast Charge · Sarn ParkAberkenfig180 kW · 148 mi	Applegreen Fast Charge	180 kW	—	£0.83	—	148 mi

Near the M4, off the motorway (within 1.2 miles)

Sort by

Charger	Network	Power	Free · live	No subscription	With subscription	From motorway
InstaVolt · 1492 – Electric Vehicle (EV) Charging Station – SwanseaClydach160 kW · 0.1 mi	InstaVolt	160 kW	—	£0.92	—	0.1 mi
InstaVolt · 223 – Electric Vehicle (EV) Charging Station – Port TalbotPort Talbot125 kW · 0.4 mi	InstaVolt	125 kW	—	£0.92	—	0.4 mi
InstaVolt · 262 – Electric Vehicle (EV) Charging Station – MorristonSwansea125 kW · 0.9 mi	InstaVolt	125 kW	—	£0.92	—	0.9 mi
InstaVolt · 819 – Electric Vehicle (EV) Charging Station – BristolAlmondsbury120 kW · 0.5 mi	InstaVolt	120 kW	—	£0.92	—	0.5 mi
InstaVolt · 834 – Electric Vehicle (EV) Charging Station – SwindonSwindon160 kW · 1.2 mi	InstaVolt	160 kW	—	£0.92	—	1.2 mi
InstaVolt · 855 – Electric Vehicle (EV) Charging Station – BristolWinterbourne120 kW · 0.0 mi	InstaVolt	120 kW	—	£0.92	—	0.0 mi
InstaVolt · 877 – Electric Vehicle (EV) Charging Station – SwindonChiseldon160 kW · 0.9 mi	InstaVolt	160 kW	—	£0.92	—	0.9 mi
InstaVolt · 884 – Electric Vehicle (EV) Charging Station – BristolStoke Gifford120 kW · 0.7 mi	InstaVolt	120 kW	—	£0.92	—	0.7 mi
InstaVolt · 908 – Electric Vehicle (EV) Charging Station – SwindonLydiard Tregoze160 kW · 0.3 mi	InstaVolt	160 kW	—	£0.92	—	0.3 mi
InstaVolt · 925 – Electric Vehicle (EV) Charging Station – SloughSlough160 kW · 0.1 mi	InstaVolt	160 kW	—	£0.92	—	0.1 mi
InstaVolt · 957 – Electric Vehicle (EV) Charging Station – SkewenNeath120 kW · 0.4 mi	InstaVolt	120 kW	—	£0.92	—	0.4 mi
InstaVolt · 966 – Electric Vehicle (EV) Charging Station – PontyclunPontyclun160 kW · 1.2 mi	InstaVolt	160 kW	—	£0.92	—	1.2 mi
GRIDSERVE · GRIDSERVE MOTO Heston EastboundLondon22/22 free · 350 kW · 1.0 mi	GRIDSERVE	350 kW	22/22	£0.92	—	1.0 mi
GRIDSERVE · GRIDSERVE MOTO Heston WestboundLondon13/16 free · 350 kW · 0.7 mi	GRIDSERVE	350 kW	13/16	£0.92	—	0.7 mi
GRIDSERVE · GRIDSERVE Slough Retail ParkSlough8/8 free · 120 kW · 0.6 mi	GRIDSERVE	120 kW	8/8	£0.85	—	0.6 mi
GeniePoint · Eurogarages - Bath RoadLondon50 kW · 0.8 mi	GeniePoint	50 kW	—	£0.83	—	0.8 mi
Ionity · IONITY Bristol NorthAlmondsbury400 kW · 0.5 mi£0.48 with Ionity Power	Ionity	400 kW	—	£0.83	£0.48Ionity Power	0.5 mi
Ionity · IONITY Cardiff VHRadyr400 kW · 0.2 mi£0.48 with Ionity Power	Ionity	400 kW	—	£0.83	£0.48Ionity Power	0.2 mi
Ionity · IONITY MagorMagor350 kW · 0.2 mi£0.48 with Ionity Power	Ionity	350 kW	—	£0.83	£0.48Ionity Power	0.2 mi
Ionity · IONITY Swindon VHLydiard Tregoze200 kW · 1.2 mi£0.48 with Ionity Power	Ionity	200 kW	—	£0.83	£0.48Ionity Power	1.2 mi
Osprey · Glamorgan Vale Retail Park, PontyclunLlantrisant150 kW · 1.2 mi	Osprey	150 kW	—	£0.82	—	1.2 mi
Osprey · Hollow Tree, BristolAlmondsbury60 kW · 0.6 mi	Osprey	60 kW	—	£0.82	—	0.6 mi
Osprey · Huntsman Taverners Downend, BristolMangotsfield50 kW · 0.8 mi	Osprey	50 kW	—	£0.82	—	0.8 mi
Osprey · Swan, AlmondsburyAlmondsbury150 kW · 0.4 mi	Osprey	150 kW	—	£0.82	—	0.4 mi
Osprey · The Bowl Inn, AlmondsburyAlmondsbury150 kW · 0.6 mi	Osprey	150 kW	—	£0.82	—	0.6 mi
Osprey · The Fox & Hounds, ThealeTheale75 kW · 1.0 mi	Osprey	75 kW	—	£0.82	—	1.0 mi
Osprey · The Wichel Inn, Swindon,Wroughton50 kW · 0.1 mi	Osprey	50 kW	—	£0.82	—	0.1 mi
Osprey · Westgate Retail Park, SloughBritwell150 kW · 0.8 mi	Osprey	150 kW	—	£0.82	—	0.8 mi
Osprey · Willow Brook Centre Car Park, Bradley StokeStoke Gifford300 kW · 1.1 mi	Osprey	300 kW	—	£0.82	—	1.1 mi
Smart Charge · Sainsburys BridgendCoity150 kW · 0.2 mi	Smart Charge	150 kW	—	£0.79	—	0.2 mi
Smart Charge · Sainsburys CalcotCalcot300 kW · 0.3 mi	Smart Charge	300 kW	—	£0.79	—	0.3 mi
Smart Charge · Sainsburys Emersons GreenMangotsfield150 kW · 0.7 mi	Smart Charge	150 kW	—	£0.79	—	0.7 mi
Smart Charge · Sainsburys Talbot GreenLlantrisant150 kW · 1.1 mi	Smart Charge	150 kW	—	£0.79	—	1.1 mi
Tesla Supercharger · Tesla Supercharger Heathrow, United Kingdom - Terminals 2 & 3London250 kW · 1.0 mi£0.48 with Tesla Supercharging	Tesla Supercharger	250 kW	—	£0.77	£0.48Tesla Supercharging	1.0 mi
Fastned · Fastned Royal Wootton BassettRoyal Wootton Bassett300 kW · 0.4 mi£0.54 with Fastned Gold Member	Fastned	300 kW	—	£0.71	£0.54Fastned Gold Member	0.4 mi
Tesla Supercharger · Tesla Supercharger Bridgend, United KingdomCoity250 kW · 0.1 mi£0.48 with Tesla Supercharging	Tesla Supercharger	250 kW	—	£0.69	£0.48Tesla Supercharging	0.1 mi
LEAP24 · LEAP24 Triumph CloseLondon200 kW · 0.8 mi	LEAP24	200 kW	—	£0.68	—	0.8 mi
Shell Recharge · SHELL CO-OP WEST DRAYTONLondon175 kW · 0.2 mi	Shell Recharge	175 kW	—	£0.60	—	0.2 mi
Shell Recharge · SHELL LITTLE WAITROSE MAIDENHEADTaplow175 kW · 1.1 mi	Shell Recharge	175 kW	—	£0.60	—	1.1 mi
Shell Recharge · SHELL SWANSEA BAYBriton Ferry50 kW · 0.8 mi	Shell Recharge	50 kW	—	£0.60	—	0.8 mi
MFG EV Power · MFG BlackhorseCHEAPESTMangotsfield5/8 free · 150 kW · 0.6 mi	MFG EV Power	150 kW	5/8	£0.59	—	0.6 mi
MFG EV Power · MFG Marlborough RoadSwindon4/10 free · 150 kW · 1.0 mi	MFG EV Power	150 kW	4/10	£0.59	—	1.0 mi
MFG EV Power · MFG SloughSlough1/8 free · 150 kW · 0.2 mi	MFG EV Power	150 kW	1/8	£0.59	—	0.2 mi
MFG EV Power · MFG Stanton St. QuintinSutton Benger6/12 free · 150 kW · 0.7 mi	MFG EV Power	150 kW	6/12	£0.59	—	0.7 mi
Be.EV · Mannington Retail ParkSwindon150 kW · 1.0 mi	Be.EV	150 kW	—	£0.59	—	1.0 mi
MFG EV Power · Morrisons Port Talbot BaglanPort Talbot0/2 free · 50 kW · 0.4 mi	MFG EV Power	50 kW	0/2	£0.59	—	0.4 mi

See the other 39 chargers ↓

Frequently asked questions

Where is the cheapest place to charge on the M4?

On the motorway: IONITY Chippenham (Ionity), at £0.83 per kWh without a subscription. Off the motorway: MFG Slough (MFG EV Power), 0.2 mi from the motorway, at £0.59 per kWh.

How much does rapid charging cost on the M4?

Without a subscription, £0.83 to £0.92 per kWh at the M4 services, i.e. £24.90 to £27.61 for 30 kWh (about 125 miles).

How many services on the M4 have rapid chargers?

8 services between London and Swansea (in both directions), over 169 miles.

Work out the real cost of your tripsKargit compares the price of every charger on your route, with tolls, subscriptions and cashback, and tells you where to charge to pay the least. Plan my trip

Prices updated on 30/10/2026. Data sources

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