What we do
The whole second life, handled.
One accountable team for the entire journey: collecting retired packs, testing and grading every cell, rebuilding them into real systems, installing them, and recycling what’s truly spent.
Most "second-life" sellers do one slice of this: they buy graded cells and resell them, or they recycle and nothing more. We own the full chain: source → test & grade → rebuild → install → recycle. That’s the only way to stand behind a used battery with a warranty and mean it.
Home energy storage that pays for itself
Bank cheap daytime solar, slash your evening bill, and keep the lights on through a blackout - with a system that costs a fraction of new and is covered for a decade.
- Site assessment and a system sized to your usage
- Solar pairing and automatic blackout backup
- Full install, commissioning and app monitoring
- 10-year performance warranty
Commercial storage sized to your loads
Commercial, industrial, off-grid and remote sites, designed around your demand profile, costed per kWh, and documented to a standard your procurement team can sign off.
- Load analysis and a bespoke capacity design
- Peak-shaving, load-shifting and off-grid configurations
- Procurement-grade specs, safety docs and reporting
- Ongoing monitoring, service and warranty
Testing & grading: where “used” becomes “proven”
This is the step that answers the only question that matters. Every module earns its grade on the bench before it’s allowed near a home or a site. If it doesn’t make the grade, it doesn’t get sold. It gets recycled.
Every system ships with its measured State of Health on record.
- 01
Intake & safety triage
Each incoming pack is logged, discharged to a safe state and inspected for damage before anything else.
- 02
Full-cycle capacity test
Every module runs a complete charge/discharge cycle so we measure real State of Health, not a nameplate number.
- 03
Resistance & self-discharge
Internal resistance and self-discharge are checked to catch weak or drifting cells the capacity test alone would miss.
- 04
Thermal & insulation check
Thermal behaviour and insulation resistance are verified against safety thresholds. Anything marginal is rejected.
- 05
Grade & document
Modules are graded by measured health and paired into matched banks. Every grade is recorded against the pack’s history.
The rest of the lifecycle
Everything around the bench: the parts that make a tested cell into a system you can rely on.
-
Sourcing & take-back
We collect retired EV and industrial packs from manufacturers, fleets, dealers and installers, with documented chain of custody so suppliers can report on where their batteries went.
-
Repurposing & assembly
Graded modules are rebuilt into complete storage systems: a fresh battery-management system, a proper enclosure, and live monitoring. Engineered, not bodged.
-
Installation & support
Accredited install and commissioning, then monitoring, maintenance and a real warranty. One team is accountable from quote to after-care.
-
End-of-life recycling
When a cell finally can’t be reused, it goes to responsible recycling partners to recover its materials. Nothing we handle is landfilled.
Tell us what you’re powering
A home, a business, or a whole site. We’ll size it, grade it, and put a real number and warranty in front of you.
Free quote · no obligation hello@relifebattery.com