EV All Day Launches Instant Battery Health Check

EV All Day has launched a £9.99 instant battery-health check for used electric vehicles, estimating battery condition, real-world range and remaining warranty from a registration number and mileage alone.

UK vehicle-verification service EV All Day has launched an instant £9.99 (about $13) battery-health check for used electric vehicles, estimating a car’s battery condition, real-world range and remaining warranty from nothing more than a registration number and current mileage. The Bristol, England-based company built the service to close a gap in standard vehicle history checks, which cover outstanding finance, theft and write-off status but say nothing about the battery that can represent up to 40% of an EV’s value. EV All Day cross-references its estimate against official DVSA MOT and mileage records — the UK’s annual roadworthiness inspection data — and delivers the report before a buyer ever travels to view a car.

Highlights

  • The £9.99 ($13) report estimates battery health, real-world range against the original WLTP figure (the European test cycle roughly equivalent to the EPA rating used in the US), and remaining battery warranty in miles and months
  • No VIN is required — the service confirms EV eligibility and pre-fills mileage from the latest MOT before any payment is taken
  • Two entry points share the same £9.99 ($13) price: an EV Battery Health Check that leads with the battery reading, and a fuller Used EV Check that adds charging, running-cost and specification detail
  • Customers receive an automatic full refund if a report cannot be generated because vehicle data is unavailable

The Missing Check in Used EV Buying

On a gasoline car, buyers judge condition largely on mileage and service history. On an electric car, the company says, the number that actually determines value — battery health — has no equivalent readout on the listing, the V5C (the UK’s vehicle registration document) or the MOT test. Replacing a pack can cost £5,000 to £15,000-plus (roughly $6,700 to $20,100), yet no seller is obligated to prove its condition.

Because batteries degrade gradually with age, mileage and charging habits, EV All Day argues mileage alone is a poor proxy: a well-maintained 80,000-mile car can hold a healthier battery than a hard-charged 30,000-mile one. The company says heavy, frequent rapid charging can roughly double the rate of battery wear.

What an EV All Day Check Shows

Every report draws on an EV-specialist battery and range dataset powered by ClearWatt, cross-checked against DVSA records. According to the company, the report may include:

  • An estimated battery-health reading and range retention versus when the car was new
  • A battery-health grade (such as A+) where a manufacturer test record exists
  • Expected real-world range shown alongside the official WLTP figure
  • Remaining battery warranty in miles and months, flagged Active or Expired
  • Usable and total battery capacity in kWh
  • Charging, running-cost, efficiency and specification data, powered by EV Database, where available
  • Full MOT and mileage history from the DVSA

EV All Day is explicit that the reading is an estimate built from aggregated real-world data plus the specific car’s age and mileage — not an OBD-measured State of Health — with a manufacturer grade layered in where a test record exists. The approach echoes independent EV battery-diagnostic services already covering the used market, including AVILOO’s certified test program and BatteryIQ’s connected monitoring push, though EV All Day’s check is aimed at pre-purchase screening from a listing rather than an in-person or connected test.

How the Service Works

Using EV All Day involves three steps:

  1. Enter a UK registration number — the equivalent of a license plate — and current mileage; no VIN is required, and mileage is pre-filled from the latest MOT
  2. Complete a single secure card payment of £9.99 ($13) through Stripe, with no subscription and no account
  3. Receive the report in seconds, delivered on screen, as a downloadable PDF, and by email

Coming Soon: A Full EV History Check

The company says a more comprehensive EV history check — combining battery condition, charging and running costs, and full vehicle provenance in one report — is scheduled to follow.

Designed for Buyers, Sellers and the Trade

EV All Day is designed for used EV buyers screening listings before a viewing; private sellers evidencing a healthy battery to support an asking price; dealers and resellers appraising EVs quickly; and existing EV owners tracking their own battery’s condition. The company positions the service as a complement to existing vehicle history checks rather than a replacement, and cites UK market research suggesting buyers pay several hundred pounds more for a used EV with evidenced battery health, and that such cars sell faster.

“On a petrol car you check the mileage and the service history. On an electric car, the number that decides value is one you simply can’t see: the health of the battery. And no seller is obliged to show it to you,” said Simon Brown, founder of EV All Day.

“For £9.99 and about thirty seconds, we give buyers an honest estimate of that battery’s health, its real-world range and how much warranty is left, straight from the listing, before they ever travel to a viewing. It’s the check that’s been missing from used EV buying,” Brown said.

Availability and Coverage

EV All Day is available now at evallday.com, through either the EV Battery Health Check or the Used EV Check entry points. Coverage spans the mainstream UK electric market, including Tesla, Nissan, Kia, Hyundai, Volkswagen, BMW, MG and Jaguar, among others. The company is operated by EV All Day Ltd and based in Chepstow, Wales.

The launch comes as electric vehicles take a growing share of the UK market, with new gasoline and diesel car sales due to end there in 2030.

The EV Report
The EV Report Staff

The EV Report is the trade publication of record for vehicle electrification. Published by Hagman Media and edited by founder Brian Hagman, it covers battery electric vehicles, plug-in hybrids, hydrogen fuel cell vehicles, charging infrastructure, and battery technology for an audience of automotive engineers, fleet managers, and clean-mobility investors.