Overview
- In 2026 replacements are due in Brandenburg, Bremen, Hamburg, Mecklenburg‑Vorpommern, Lower Saxony, Saxony and Saxony‑Anhalt.
- Berlin, North Rhine‑Westphalia and Saarland follow in 2027, with Bavaria and Thuringia scheduled for 2028.
- Devices must be replaced after ten years, often within an additional six months, counted from the manufacture or in‑service date printed on the unit.
- Responsibility lies with property owners or landlords, annual checks are required under DIN 14676, and noncompliance can lead to reported fines up to €50,000 plus potential insurance complications after a fire.
- Experts urge early procurement to avoid shortages and price spikes, recommending Q‑label models with sealed 10‑year batteries that typically cost around €10–€20.