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Second life

Second-life batteries: a second use before recycling.

A second-life battery has come out of its first use, often in a vehicle, with capacity left, and goes into a new one before it is recycled. William Bergh trades second-life cells, modules and packs to storage integrators and repurposers. Buyers decide on state of health, age, cycles and test results.

What buyers check

  • SoHOften above 90%
  • HistoryAge and cycles
  • ProofTest results and the UN 38.3 report. Untested lots and missing documents are the most common reasons a buyer says no
  • Not for reuseDamaged batteries ship under ADR special provision 376, and end-of-life batteries go to recycling under 377

Questions

Does William buy and sell second-life batteries?

Yes, alongside new and unused batteries. Send what you have or need on WhatsApp.

How long has he worked on this?

Since his 2019 thesis and R&D at Northvolt on battery return flows and design for recycling. He sits on the advisory board of BatteReverse, an EU project on EV battery reverse logistics.

Can he help set up a return flow?

Yes. He helps companies set up, improve and run their end-of-life and sourcing processes, as a project or a few days a week.

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