AFAIK it allows the use of common tools or specialized tools (as long as they are provided free of charge) and a layperson can accomplish the repair.

(38) In order to ensure that portable batteries that were incorporated into appliances are subject to separate collection, treatment and high quality recycling once those appliances become waste, provisions to ensure the removability and replaceability of batteries in such appliances are necessary. Consumer safety should be ensured, in line with Union law and in particular Union safety standards, during the removal of portable batteries from or the replacement of portable batteries in an appliance. A portable battery should be considered to be removable by the end-user when it can be removed with the use of commercially available tools and without requiring the use of specialised tools, unless they are provided free of charge, or proprietary tools, thermal energy or solvents to disassemble it.

Edit: Source - First PDF link on the page