The European Union plan would force technology manufacturers to use a common charger (USB Type-C port) for portable electronic devices, including phones, tablets, digital cameras, headphones and portable speakers.
Members of the European parliament (MEP) in a relevant committee voted 41 to 2 in support of the proposal this week.
The proposal needs to be approved next month at a plenary session, where all 705 members will attend, and then talks can begin with EU governments on the final legislation.
The goal is to reduce electronic waste and make things more convenient for consumers.
MEP Alexander Agius Saliba, from Malta, said the plan would help the environment, reduce inconvenience, and save both consumers and businesses money.
With half a billion chargers for portable devices shipped in Europe each year, generating 11,000 to 13,000 tonnes of e-waste, a single charger for mobile phones and other small and medium electronic devices would benefit everyone.