Repurposed batteries
First life on the road. Next life on the grid.
Repurposed EV packs, each keeping its own battery management, tested before build and monitored for life.
Why repurpose
Too good to scrap.
Every day, EVs come off the road: some at the natural end of their life in the car, others early after an accident. In the majority of cases, the battery is still healthy and ready to be used again.
UK EV registrations a year by 2030
UK plug-ins retired early each day
average health of the packs in our systems
of an EV's embedded CO2 is its battery
Sources: Allye analysis of UK write-off data (2025); BloombergNEF and Rystad Energy; industry lifecycle assessments.
Batteries last
Better than new for storage.
EV batteries are lasting far longer than expected. Used again in stationary storage and charging, they do the same job as new cells with a fraction of the carbon.
Average battery capacity retained after 200,000 miles
70%: typical end of life for a battery in stationary storage
Source: Tesla Impact Report 2023. Long Range models with 2170 cells.
Built for tougher duty
Packs built for crashes, vibration and fast charging find storage an easy life.
A gentler next life
Lower charge rates, steady temperatures and no vibration add 10 to 15 years.
Lower embedded CO2
Reuse avoids making a new pack: around 7 tonnes of CO2 for a 75kWh battery.
Recycled later
Materials are recovered after a longer life, ready for the next EV batteries.
In each range
How MAX and MEV use repurposed packs.
Four to eighteen packs
NMC or NCA, with optional LFP, in single or mixed chemistry. 94% average pack state of health in our systems, a 12-year battery life and 60% lower embedded CO2 than new cells. Packs are replaced individually to extend life.
Two or three packs
800V packs, each on its own slide-out carrier with its own converter and battery management, so one can be serviced while the others keep charging. An estimated 15 to 24 tonnes of CO2e avoided per MEV against new cells.
Battery services
Where our batteries come from.
We test, collect and buy EV batteries for vehicle manufacturers, fleets, insurers and recyclers. The best become MAX and MEV.
Lower carbon, lower cost, same performance.
Tell us about your site or fleet and we'll show you the cost and CO2 savings of repurposed batteries.
sales@allye.com+44 (0)20 805 06560