Level 4 EV technicians
EV and high-voltage work is handled by trained technicians with the right process and equipment.
EV servicing, diagnostics and battery health reports
EV & Future Mobility
Independent EV servicing, AVILOO battery health reports, diagnostics and high-voltage system checks from J Day Engineering.EV Servicing
Routine electric vehicle servicing, checks and maintenance from an independent EV-capable workshop.
View routeBattery Health Reports
AVILOO EV battery health testing and state-of-health reporting for owners, buyers, sellers and fleets.
View routeEV Diagnostics
Warning lights, charging issues, range concerns and EV system faults checked properly.
View routeHigh-Voltage Support
High-voltage system checks and specialist EV support where the vehicle needs trained attention.
View routeBuyer & Seller Reports
Useful battery and condition reports for used EV purchases, resale confidence and ownership records.
View routeBook anytime
Send the request when it suits you. The team will confirm when open.
If the workshop is closed, send the registration and a short note online. For anything that feels unsafe, do not drive the vehicle.Out of hours informationProper EV capability
EV support with the training and equipment behind it.
Your EV is looked after by a workshop with Level 4 EV technicians, AVILOO battery testing, onsite charging points, high-voltage experience, battery handling equipment and real-world EV repair knowledge.
AVILOO battery testing
Battery health gives owners, buyers, sellers and fleets clearer evidence of condition.
EV infrastructure onsite
Charging points, diagnostic capability and battery handling equipment support proper EV care onsite.
Aviloo battery health testing
Independent EV battery confidence, not guesswork.
The battery is one of the most important and expensive parts of an electric vehicle. AVILOO battery health testing gives owners, buyers, sellers and fleets clearer evidence of battery condition and state of health.
SOHindependent battery health reporting for EV ownership, resale and maintenance decisionsExplore battery check
Buying, selling and ownership
Battery condition changes the conversation around used EVs.
Mileage and age do not tell the whole story. Battery evidence can support purchase decisions, resale confidence, warranty conversations, fleet replacement planning and long-term ownership cost.
Buying an EV
Check battery condition before committing to the vehicle.
Selling an EV
Give the next owner more confidence with an independent battery report.
Owning an EV
Understand range concerns, battery condition and future maintenance more clearly.
Fleet EVs
Track battery condition, ownership cost and replacement timing across commercial vehicles.
EV servicing
EVs still need proper servicing.
Electric vehicles have fewer traditional engine parts, but brakes, tyres, suspension, steering, cooling systems, cabin filters and high-voltage safety items still matter.
EVservicing, checks and clear independent advice without making the process complicatedBook EV servicing
Proper EV capability
Not just basic EV servicing.
J Day EV is supported by Level 4 EV technicians, onsite EV charging points, AVILOO battery testing, investment in battery handling equipment and practical high-voltage experience.
HVtrained attention for EV diagnostics, high-voltage checks and battery-related workBattery reports
EV experience built over years
EV support was not added yesterday.
J Day has been involved in EV aftermarket repair from the early stages, with James pushing for independent garages to be recognised in the EV repair space. That background supports the current battery health, diagnostic and high-voltage offer.
EVhistory, training, battery testing and practical workshop infrastructure behind the serviceBook EV support
EV ownership support
Useful updates for owners, buyers and fleets.
Battery condition, range confidence, charging concerns, resale evidence and used EV checks all deserve clear answers without overcomplicating the process.
Battery State of Health
An independent SOH report helps turn a hidden concern into something measurable.
Charging, warning lights and range
Get straightforward help when the vehicle feels different, charges slowly or raises warnings.
Used EV confidence
Battery evidence can support purchase decisions, resale confidence and ownership planning.
Common questions
Useful answers for EV owners, buyers and sellers.
EV customers often know the concern before they know the service name: range drop, charging issue, warning light, used EV purchase or battery health.
Do EVs still need servicing?
Yes. Brakes, tyres, suspension, steering, cooling systems, filters and safety checks still matter.
What is an AVILOO battery health report?
It gives clearer evidence of battery condition and state of health for ownership, purchase or resale.
Can you help with EV warning lights?
Yes. Charging issues, range concerns and EV system faults can be checked before parts are guessed at.
Is this useful for fleets?
Yes. Battery reports and EV records support cost control, planning and replacement decisions.
EV booking
Book an EV check, battery report or diagnostic visit.
Start with the registration and we will point you toward the right EV service.Trusted capability
Useful proof behind the work.
AVILOO
Independent EV battery health reports for ownership, buying and selling confidence.
HEVRA
Hybrid and electric vehicle repair association support for EV capability and standards.
RAC Approved
Recognised repairer credentials that support customer confidence.
RMI
Motor industry membership and professional workshop accountability.
Why choose this service
EV ownership is easier when battery condition, diagnostics and future maintenance are explained clearly.
- Multiple Level 4 EV technicians and EV-specific diagnostic capability
- AVILOO battery health testing, onsite EV charging and battery handling equipment
- Battery reports, EV notes and ownership records available through My Garage