Second-life batteries
First life on the road. Next life on the grid.
MAX is built from repurposed EV battery packs that keep their original battery management and liquid cooling, tested and arranged independently for uptime.
Why second life
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 we use
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, they deliver 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 second life
Lower charge rates, steady temperatures and no vibration add 10 to 15 years.
60% lower 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.
Second-life batteries
Built to last twice.
All batteries undergo extensive testing and are arranged independently to improve uptime, maintenance and replacement.
Technology
Automotive engineering inside.
Power efficiency
Silicon carbide bi-directional power modules, over 94% efficient from 25% to 100% load.
Thermal management
Integrated liquid cooling for the battery packs and power modules, for greater efficiency.
Chemistry
NMC or NCA, optional LFP, single or mixed. Packs are replaced individually to extend life.
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.
Lower carbon, lower cost, same performance.
Tell us about your site and we'll show you the cost and CO2 savings of second-life storage.
sales@allye.com+44 (0)20 805 06560
Keep exploring
More on how MAX works
Deploy anywhere
Tow, lift or drop it. On-grid or off-grid, wherever work goes.
EV charging and recharging
Up to 1.28MW DC charging, and recharging with zero diesel.
Power control and software
PackFlex, SyncFlow and software that learns your site's load.
Safety, service and support
Four layers of safety and UK engineers behind every unit.