How do you test an EV battery that has been removed from the car?

SPEX connects directly to the battery rather than through the vehicle's diagnostic port, so it can assess batteries already out of the car, reading more than 150 parameters in under 60 seconds.

Is state of health a reliable measure of a used EV battery?

On its own, no. The Pack Health Index combines several independent measures of condition, including how quickly the battery is ageing, into one score and an A to E grade.

What happens to EV batteries returned under warranty or at end of lease?

With battery lifecycle management, we collect, assess and send each battery to its highest-value outcome: reuse, repair, repurposing into MAX, or recycling through approved partners, with a full record for every battery.

How are EV batteries transported safely?

In our own vehicles, by trained drivers, with onboard monitoring of battery condition throughout the journey.

Battery services

We understand EV batteries, from the first test to their final use.

Battery services for vehicle manufacturers, fleets, insurers and recyclers: lifecycle management, testing and grading, monitored transport and buying retired packs.

Talk to us about your batteries

For OEMs and fleets

Battery lifecycle management

One partner for every battery that comes back to you: collection, assessment, the best next life and the documentation.

Find out more →For insurers, recyclers and fleets

Battery testing and grading

SPEX tells you what a battery is really worth and whether it is safe, in minutes, in the car or out of it.

Find out more →For breakers, OEMs and fleets

Sell us your battery

Retired EV packs are worth more as energy storage. We buy whole packs from breakers, OEMs and fleets.

Find out more →

The battery journey

Collect, assess, decide, return value.

Testing and transport are each available on their own, and are also the building blocks of battery lifecycle management.

Collect

Monitored transport in our own vehicles, by trained drivers.

Assess

SPEX assessment in or out of the vehicle, then detailed testing.

Decide

The best outcome for each: reuse, repair, MAX or recycling.

Report

A full record for every battery, with duty of care documentation.

EV battery packs loaded for collection on an Allye flatbed

Monitored transport

Every battery monitored, every mile.

Moving large lithium batteries is regulated, slow and expensive. We collect them in our own vehicles, by drivers trained for the job, with battery condition monitored throughout the journey.

Collected from site by trained drivers
Onboard monitoring, with alerts on any change
Condition known before it moves, with SPEX at collection
No specialist carriers or packaging, and every journey documented

Arrange a collection

Why Allye

We are not only an assessor.

Through MAX we are also a user of second-life batteries, so we have every reason to find the value others miss.

See where graded batteries go next

Cutaway of an Allye MAX500 showing its second-life battery packs

Talk to us about your batteries.

Tell us what you hold and what you need. We'll reply with the right service and next steps.

sales@allye.com+44 (0)20 805 06560