Most shared e-scooter and e-bike packs leave the fleet while they still hold a lot of energy. Operators typically retire them after about a 20% capacity loss, which is the handoff Qucit describes for second-life use. The pack no longer meets rider range and power needs. It isn't automatically junk.
Stationary storage and backup power tolerate that fade better than a rental scooter does. You still need a process that can tell a reusable module from a fire risk.
Can you sell residual value without guessing? Only if you measure state of health, inspect the case, and keep chemistry-specific safety limits in view.
When a micromobility battery leaves the road
High cycle counts, fast charging, and outdoor heat chew through scooter and e-bike cells. Range shrinks first. Peak output follows.
Qucit flags a 20% capacity drop as the usual trigger, which is the same as holding about 80% of original capacity. Fleet diagnostics should already track that number. When a pack crosses the line, you schedule a cell health test instead of sending it on another shift.
The whole pack doesn't always fail together. Fluctuo reports that 80% of components still operate perfectly in many failure cases. You may pull good modules out of a retired enclosure. You may also find a single swollen cell that ends the reuse path.
Don't treat 80% remaining capacity as a universal OEM rule. Some manufacturers set a different state-of-health floor for warranty, thermal safety, or BMS cutoff. Follow the pack's own documentation when it conflicts with a generic 20% rule.
Field teams sometimes keep a weak pack in service because the scooter still "sort of" rides, and that habit is how you get stranded riders and surprise truck rolls, which is why the retirement trigger belongs in software, not in someone's memory of last month's workshop chat.
What reuse actually saves
ZHAW researchers working with Libattion studied upcycled e-bike batteries over the full product life cycle. They reported 70-80% lower environmental impact than manufacturing new packs.
Turns out most of that gain is avoided mining and cell production, not a clever second enclosure. A gentler duty cycle is the point. Second-life roles such as backup power fit reduced capacity and delay disposal.
Keep the finding in its lane. The ZHAW work is e-bike research with a named partner. It isn't a certified saving for every NMC scooter pack in a mixed U.S. fleet. Name the study if you cite 70-80% in a sustainability report.
E-scooters still dominate the volume story in commercial market estimates because urban fleets swap packs so often. Recycling remains the right end point for damaged cells. Reuse isn't a substitute for a qualified waste stream.
Market figures operators quote
Dataintelo put the global micromobility battery second-life market at USD 431 million in 2024. Europe was listed at USD 129 million. North America was listed at USD 78 million. The report treats e-scooters as the largest source of those packs.
Those numbers are a commercial estimate, useful for scale. They aren't an audited census.
| Region | Reported size (2024) | Note in the report |
|---|---|---|
| Global | USD 431 million | E-scooters as the largest battery source |
| Europe | USD 129 million | Policy pressure toward circular use |
| North America | USD 78 million | Reuse activity in urban tech hubs |
Source: Dataintelo.
A retired pack is a cost until a buyer or a storage project takes it. Linking with a repurposer can turn that cost into a quote. It can also fail if the pack fails grading. Price the recycling fallback before you count on revenue.
How to grade packs before they leave the warehouse
Start with data you already have, then test, then sort. Keep the BMS export, damage photos, test results, and the downstream partner's name with the pack ID.
- Export state of health from the BMS or fleet platform. Flag units near 80% remaining capacity, or the OEM's published floor if it is stricter.
- Quarantine the pack. Check for swelling, crushed housings, heat marks, and water ingress. Damaged units go to a qualified recycler. A pack at 81% SOH with a dented case is still a recycler candidate.
- Test capacity and internal resistance at cell or module level. Procedures differ by chemistry. LFP does not age like NMC.
- Sort modules that pass from modules that do not. Fluctuo's 80% component figure is a reported pattern, not a promise for your batch.
- Request residual-value quotes. Bib's Battery Management Tool, noted among startup award winners at Micromobility Europe 2025, is one option for estimating reuse paths. Independent labs that work to UL 1974 do similar grading.
- Match the second job. Low-power stationary storage is the usual fit. Don't drop a faded scooter pack into another high-cycle vehicle unless the manufacturer allows it.
To be honest, monthly audits in fleet software catch more value than a once-a-year garage purge. Sync retirements with existing maintenance so the field team isn't hunting packs on a Friday night.
Fire risk, chemistry, and UL 1974
Charging, storage, and fire-prevention steps change with cell chemistry and pack design. A rule that is safe for one e-bike battery can be wrong for another scooter SKU. Read the OEM sheet.
Calling a pack "second-life" doesn't certify it for a new box. UL 1974 is the framework labs use to evaluate remanufactured or repurposed batteries at cell, module, and pack level. It covers process as well as product. Certified units should be identified as Repurposed or Remanufactured.
UL Solutions audits repurposing facilities to UL 1974. U.S. model fire codes have not fully spelled out every hazard in a lithium-repurposing shop, so local officials may rely on that certification and on alternate-materials provisions. Ask the fire marshal before you store drums of used packs.
A warehouse aisle is a bad waiting room for every tired pack you pull, because heat, residual charge, and a crushed case don't care that you planned to call the recycler on Monday, and the fire marshal won't care either. Never charge a swollen cell, and never park damaged packs with the live fleet. If the OEM forbids reuse, recycle.
Rules that stop at the border
Thing is, you can't paste EU battery law onto a U.S. city operation. The EU Batteries Regulation (Regulation (EU) 2023/1542) governs batteries and waste batteries in the EU. It has applied since February 18, 2024, with some duties phased in later, including end-user removability for portable batteries in appliances by 2027.
The battery passport is part of that EU system. The Commission states that the DPP Registry becomes operational on July 20, 2026, with a QR code tying a battery to reuse and recycling data. EU fleets and packs shipped into the EU will feel that. A U.S. only operator will not inherit those duties by default.
Lithium storage, transport, and hazardous-waste rules still sit with U.S. cities, states, and federal waste law. Confirm the jurisdiction you actually operate in. Confirm it in writing if you store packs overnight. One warehouse in California is not the same file as a depot in Texas.
Keep a test log, a chain of custody, and a named downstream partner. Unlabeled stacks of packs are how you lose both the reuse sale and the recycling appointment.
Export state of health for the oldest slice of the fleet this week. Isolate anything swollen. Send the same spec sheet to one recycler and one repurposer, then compare the quotes you actually get.