Independent · Free · Updated continuously

UK EV Battery Health Index

The first public, model-by-model index of predicted battery state-of-health for every electric car, van and truck on UK sale. Built on peer-reviewed cycle-aging research (Geotab fleet telemetry, Recurrent Auto, Smith et al. NMC/LFP models). No uploads required.

92.4%

Fleet average SoH at 3yr

145 models · 25,500 mi assumed

94.8%

LFP chemistry average

Cycle-tolerant, ages slowly

92.3%

NMC chemistry average

Modern industry standard

145

UK models tracked

93 cars · 32 vans · 20 trucks

Vehicle type

Age at valuation

Best holding value

Top 5

BYD Atto 394.8%
BYD Dolphin94.8%
BYD Seal94.8%
BYD Sealion 794.8%
Citroen ë-C394.8%

Quickest degraders

Top 5

Tesla Model S91.7%
Tesla Model X91.7%
Audi e-tron GT92.3%
Audi Q4 e-tron 4592.3%
Audi Q6 e-tron92.3%

Make	Model	Pack	Chem.	1yr	2yr	3yr	4yr	5yr	7yr	10yr	Range @ 3yr
Audi	e-tron GT	93.4 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	293 mi	Get report →
Audi	Q4 e-tron 45	77 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	241 mi	Get report →
Audi	Q6 e-tron	94.9 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	297 mi	Get report →
Audi	Q8 e-tron 55	106 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	280 mi	Get report →
BMW	i4 eDrive40	81.3 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	278 mi	Get report →
BMW	i5 eDrive40	81.2 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	268 mi	Get report →
BMW	i7 xDrive60	101.7 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	294 mi	Get report →
BMW	iX xDrive50	105.2 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	304 mi	Get report →
BMW	iX1 xDrive30	64.7 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	210 mi	Get report →
BMW	iX3	74 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	235 mi	Get report →
BYD	Atto 3	60.5 kWh	LFP	98.1%	96.1%	94.8%	93.5%	92.2%	89.6%	85.8%	188 mi	Get report →
BYD	Dolphin	60.4 kWh	LFP	98.1%	96.1%	94.8%	93.5%	92.2%	89.6%	85.8%	212 mi	Get report →
BYD	Seal	82.5 kWh	LFP	98.1%	96.1%	94.8%	93.5%	92.2%	89.6%	85.8%	284 mi	Get report →
BYD	Sealion 7	82.5 kWh	LFP	98.1%	96.1%	94.8%	93.5%	92.2%	89.6%	85.8%	265 mi	Get report →
Citroen	ë-Berlingo	50 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	144 mi	Get report →
Citroen	ë-C3	44 kWh	LFP	98.1%	96.1%	94.8%	93.5%	92.2%	89.6%	85.8%	171 mi	Get report →
Citroen	ë-Dispatch	75 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	192 mi	Get report →
Citroen	ë-Relay 3.5t	110 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	211 mi	Get report →
Cupra	Born	77 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	263 mi	Get report →
Cupra	Tavascan	77 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	254 mi	Get report →
Dacia	Spring	24.3 kWh	LFP	98.1%	96.1%	94.8%	93.5%	92.2%	89.6%	85.8%	107 mi	Get report →
DAF	LF Electric 19t	282 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	179 mi	Get report →
DAF	XD Electric 26t	282 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	179 mi	Get report →
DAF	XF Electric 44t	525 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	236 mi	Get report →
Fiat	500e	37.3 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	147 mi	Get report →
Fiat	600e	50.8 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	174 mi	Get report →
Fiat	E-Doblò	50 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	144 mi	Get report →
Fiat	E-Ducato 3.5t	110 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	210 mi	Get report →
Fiat	E-Scudo	75 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	192 mi	Get report →
Ford	Capri	77 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	241 mi	Get report →
Ford	E-Tourneo Courier	43 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	130 mi	Get report →
Ford	E-Transit 425L 3.5t	89 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	178 mi	Get report →
Ford	E-Transit Custom	65 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	182 mi	Get report →
Ford	Explorer EV	77 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	246 mi	Get report →
Ford	Mustang Mach-E ER AWD	91 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	262 mi	Get report →
Ford	Mustang Mach-E SR	70 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	212 mi	Get report →
Fuso	eCanter 7.49t	124 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	135 mi	Get report →
Genesis	Electrified G80	82.5 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	258 mi	Get report →
Genesis	GV60	77.4 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	246 mi	Get report →
Honda	e:Ny1	61.9 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	178 mi	Get report →
Hyundai	Inster	49 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	185 mi	Get report →
Hyundai	Ioniq 5	77.4 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	255 mi	Get report →
Hyundai	Ioniq 5 N	84 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	228 mi	Get report →
Hyundai	Ioniq 6	77.4 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	304 mi	Get report →
Hyundai	Kona Electric	64.8 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	230 mi	Get report →
Iveco	eDaily 35S Panel	74 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	145 mi	Get report →
Iveco	eDaily 42S 4.25t Chassis	74 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	118 mi	Get report →
Iveco	eDaily 72C 7.2t	111 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	142 mi	Get report →
Jaguar	I-Pace	84.7 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	217 mi	Get report →
Jeep	Avenger Electric	50.8 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	174 mi	Get report →
Kia	EV3	81.4 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	301 mi	Get report →
Kia	EV6 GT	77.4 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	223 mi	Get report →
Kia	EV6 Long Range RWD	77.4 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	265 mi	Get report →
Kia	EV9 GT-Line	99.8 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	279 mi	Get report →
Lotus	Eletre	109 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	280 mi	Get report →
Lotus	Emeya	109 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	300 mi	Get report →
MAN	eTGM 26t	264 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	157 mi	Get report →
MAN	eTGX 44t	480 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	211 mi	Get report →
Maxus	eDeliver 7	88 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	198 mi	Get report →
Maxus	eDeliver 9 L3H3	88.5 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	174 mi	Get report →
Mercedes	eActros 300 27t	336 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	207 mi	Get report →
Mercedes	eActros 600 44t	600 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	292 mi	Get report →
Mercedes	eAtego 7.5t	168 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	176 mi	Get report →
Mercedes	EQA 250+	70.5 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	221 mi	Get report →
Mercedes	EQB 300	66.5 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	192 mi	Get report →
Mercedes	EQE 350 SUV	90.6 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	274 mi	Get report →
Mercedes	EQE 350+	90.6 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	299 mi	Get report →
Mercedes	EQS 450+	107.8 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	343 mi	Get report →
Mercedes	EQS SUV 450+	107.8 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	311 mi	Get report →
Mercedes	eSprinter 113kWh	113 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	222 mi	Get report →
Mercedes	eSprinter 81kWh	81 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	162 mi	Get report →
Mercedes	eVito Panel	60 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	154 mi	Get report →
Mercedes	eVito Tourer L3	90 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	219 mi	Get report →
Mercedes	G 580 with EQ Tech	116 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	223 mi	Get report →
MG	MG4 EV Long Range	61.7 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	228 mi	Get report →
MG	MG4 EV XPower	61.7 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	199 mi	Get report →
MG	ZS EV	70 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	222 mi	Get report →
Mini	Cooper Electric SE	49.2 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	182 mi	Get report →
Nio	ET5	75 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	257 mi	Get report →
Nissan	Leaf e+	59 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	198 mi	Get report →
Nissan	Townstar EV	45 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	132 mi	Get report →
Opel/Vauxhall	Corsa Electric	50.8 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	187 mi	Get report →
Opel/Vauxhall	Mokka Electric	50.8 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	174 mi	Get report →
Opel/Vauxhall	Movano Electric 3.5t	110 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	211 mi	Get report →
Opel/Vauxhall	Vivaro Electric	75 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	192 mi	Get report →
Peugeot	e-2008	50.8 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	171 mi	Get report →
Peugeot	e-208	50.8 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	191 mi	Get report →
Peugeot	E-Boxer 3.5t	110 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	211 mi	Get report →
Peugeot	E-Expert	75 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	192 mi	Get report →
Peugeot	E-Partner	50 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	144 mi	Get report →
Polestar	2 Long Range	79 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	265 mi	Get report →
Polestar	3	107 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	308 mi	Get report →
Polestar	4	100 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	307 mi	Get report →
Porsche	Macan 4 Electric	95 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	287 mi	Get report →
Porsche	Taycan 4S	89 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	283 mi	Get report →
Renault	5 E-Tech	52 kWh	LFP	98.1%	96.1%	94.8%	93.5%	92.2%	89.6%	85.8%	206 mi	Get report →
Renault	Kangoo E-Tech	45 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	132 mi	Get report →
Renault	Master E-Tech 52kWh	52 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	102 mi	Get report →
Renault	Master E-Tech 87kWh	87 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	174 mi	Get report →
Renault	Megane E-Tech EV60	60 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	217 mi	Get report →
Renault	Scenic E-Tech	87 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	292 mi	Get report →
Renault	Scenic E-Tech LR	87 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	292 mi	Get report →
Renault	Trafic E-Tech	52 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	131 mi	Get report →
Renault Trucks	D Wide Z.E. 26t	265 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	163 mi	Get report →
Renault Trucks	E-Tech T 44t	540 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	243 mi	Get report →
Scania	45 R BEV 44t	624 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	288 mi	Get report →
Smart	#1	62 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	194 mi	Get report →
Smart	#3	62 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	201 mi	Get report →
Subaru	Solterra	71.4 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	206 mi	Get report →
Tesla	Model 3 Long Range	75 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	289 mi	Get report →
Tesla	Model 3 Performance	79 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	270 mi	Get report →
Tesla	Model 3 RWD	57.5 kWh	LFP	98.1%	96.1%	94.8%	93.5%	92.2%	89.6%	85.8%	237 mi	Get report →
Tesla	Model S	95 kWh	NCA	96.9%	93.8%	91.7%	89.5%	87.4%	83.2%	76.8%	305 mi	Get report →
Tesla	Model X	95 kWh	NCA	96.9%	93.8%	91.7%	89.5%	87.4%	83.2%	76.8%	272 mi	Get report →
Tesla	Model Y Long Range	75 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	261 mi	Get report →
Tesla	Model Y Performance	75 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	243 mi	Get report →
Tesla	Model Y RWD	60 kWh	LFP	98.1%	96.1%	94.8%	93.5%	92.2%	89.6%	85.8%	228 mi	Get report →
Tesla	Semi (UK trial)	850 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	424 mi	Get report →
Toyota	bZ4X	71.4 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	206 mi	Get report →
Toyota	bZ4X AWD	71.4 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	194 mi	Get report →
Toyota	Proace City Electric	50 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	144 mi	Get report →
Toyota	Proace City Verso EV	50 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	151 mi	Get report →
Toyota	Proace Electric	75 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	192 mi	Get report →
Vauxhall	Combo Electric	50 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	144 mi	Get report →
Volkswagen	e-Crafter	35.8 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	70 mi	Get report →
Volkswagen	ID. Buzz Cargo	77 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	209 mi	Get report →
Volkswagen	ID.3 Pro	58 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	210 mi	Get report →
Volkswagen	ID.3 Pro S	77 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	263 mi	Get report →
Volkswagen	ID.4 Pro	77 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	249 mi	Get report →
Volkswagen	ID.5 Pro	77 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	254 mi	Get report →
Volkswagen	ID.7 Pro	77 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	290 mi	Get report →
Volkswagen	ID.7 Tourer Pro S	86 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	318 mi	Get report →
Volkswagen	ID.Buzz Pro	77 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	222 mi	Get report →
Volkswagen	Transporter T7 eHybrid Cargo	64 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	164 mi	Get report →
Volta	Zero 7.5t	110 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	115 mi	Get report →
Volvo	EC40	78 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	244 mi	Get report →
Volvo	EX30 ER	64 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	219 mi	Get report →
Volvo	EX40 (XC40 Recharge)	78 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	236 mi	Get report →
Volvo	EX90	107 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	294 mi	Get report →
Volvo	FE Electric 27t	265 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	163 mi	Get report →
Volvo	FH Electric 44t	540 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	243 mi	Get report →
Volvo	FL Electric 16t	265 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	188 mi	Get report →
Volvo	FM Electric 44t	540 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	243 mi	Get report →
Xpeng	G6	87.5 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	279 mi	Get report →
Zeekr	X	66 kWh	NMC	97.1%	94.2%	92.3%	90.3%	88.3%	84.3%	78.4%	214 mi	Get report →

How this Index is built

Every number on this page is a predicted state-of-health, not a physical measurement. We don't have a feed of every car's pack — nobody in the UK does. What we have is a peer-reviewed methodology calibrated against the two largest published EV-degradation datasets, and the discipline to be honest when we're estimating versus measuring.

Calendar ageing: ~2.3%/yr first 24 months, then ~1.4%/yr — calibrated to the Geotab "Fleet EV Battery Degradation" 6,300-vehicle dataset (2023).
Cyclic ageing: ~0.012% per equivalent full cycle, multiplied by fast-charge stress, derived from Smith et al. NMC and LFP cycle models.
Chemistry adjustment: LFP packs ageing 30% slower on calendar and 45% slower on cycles. NCA 10% faster on calendar.
Annual mileage: 8,500 mi (UK Department for Transport NTS 2024 average). DC-rapid share assumed 40% retail / 70% fleet.
Calibrated against: Recurrent Auto State of Used EV Batteries 2024 (15,000-vehicle dataset). Target accuracy ~2–3pp — independent RangeCheck-specific validation in progress, see Methodology & validation.

Get a Verified Report for your car · £9 Read the full methodology