The easiest answer is everywhere. We all use lithium-ion batteries every day in mobile phones, laptops, power tools, e-cigarettes, e-bikes and e-scooters.
Residential buildings are likely to have tenants or occupiers using, storing and charging these batteries.
Warehouses and retail properties may have a stock of new or used lithium-ion batteries.
Products containing these batteries range from wearable technology devices (e.g. medical) to general plant and machinery (e.g. forklift trucks). Hand-held scanners for reading bar codes and picking goods often contain lithium-ion batteries. Automated storage and retrieval systems will have a large number of robots that may be powered by lithium-ion batteries.
Manufacturing premises often use portable hand tools, plant or machinery powered by these batteries. They may also manufacture, maintain or repair items with lithium-ion batteries.