Second-life energy storage
EV and industrial packs retire with 70 to 80% of their capacity still in them. We test and grade every module, then rebuild them into warranty-backed storage for homes and businesses, at a fraction of the cost and carbon of new.
The second-life journey
First life ends
When an EV or industrial battery can no longer meet a vehicle’s or factory’s demands, it still holds roughly 70 to 80% of its original capacity, which is years of storage left in every module.
Every module checked
Each module is capacity-tested, safety-checked and graded. Anything below grade goes straight to responsible recycling, so nothing unverified reaches a home or site.
Rebuilt for storage
We reassemble proven modules into a fresh enclosure with a new BMS, monitoring and warranty, purpose-built for stationary storage rather than a car’s duty cycle.
Second life begins
Installed, commissioned and monitored, storing clean energy at up to 60% less per kWh than new, with the same peace of mind.
A retired battery isn’t a dead one. It’s simply past the point where it can meet a car’s or a factory’s demands, which leaves plenty of capacity for a less demanding job.
An EV or industrial battery comes out of its first life with roughly 70 to 80% of its capacity still usable. That leaves years of storage in it.
Every module is diagnosed, capacity-tested and safety-checked, then graded. Anything below grade goes straight to responsible recycling.
Graded cells are rebuilt into a warranty-backed system with a fresh BMS, enclosure and monitoring, ready to store clean energy.
Second-life only works when it’s proven rather than promised. So every claim here is backed by a number, a test, or a warranty instead of an adjective.
Up to 60% less per kWh than equivalent new storage, without cutting corners on safety.
Reusing a pack avoids the mining and manufacturing of a brand-new one. The greenest cell is the one already made.
Every module is capacity-tested, safety-checked and graded before it goes anywhere near a home.
A 10-year performance warranty, the same cover you’d expect from a new system.
Homeowner or business, you get the same tested cells and the same warranty, just the path that fits you.
For your homePair second-life storage with your solar to bank cheap daytime power, cut your bill, and keep the lights on when the grid drops.
For your businessCommercial, industrial, off-grid and remote sites, sized to your loads and costed per kWh, with reporting your procurement team can sign off.
One accountable chain of custody, start to finish. We don’t just resell cells. We own every step from collection to recycling.
We collect retired EV and industrial packs from manufacturers, fleets, installers and recyclers.
Every module is diagnosed, capacity-tested and safety-checked, then graded. Sub-grade cells go to recycling.
Graded cells are reassembled into new storage systems with a fresh BMS, enclosure and live monitoring.
We install, commission, monitor and warranty the system, then recycle it responsibly at true end of life.
70-80%
of a pack’s capacity is still usable when it retires from its first life. We put that to work instead of shredding it.
+10yrs
of reliable second-life storage we add to each pack before its cells are finally recycled.
100%
of what can’t be safely reused goes to responsible recycling partners. Nothing we handle is landfilled.
We’re a young company, and we’d rather show real numbers than round ones. We’ll publish verified waste-diversion and CO2 figures here as our installed base grows.
How the circular model worksSecond-life only works as a network: a steady supply of retired packs upstream, and the reach to deploy them downstream. If that’s you, let’s talk.
Become a partnerEV makers · dealers · fleets · manufacturers
Retiring packs? Offload them responsibly. We handle testing, reuse and end-of-life recycling, with chain-of-custody you can report on.
Solar installers · distributors · wholesalers
Add a tested, warranty-backed storage line to what you already sell, with local support behind it.
Resource recovery · materials recyclers
Take the cells that can’t be reused and close the loop, so nothing we handle ends up in landfill.
Tell us about your home or site and we’ll come back with a tested, warranty-backed system and a real price, usually within one business day.
Free quote · no obligation hello@relifebattery.com