Methods and systems for programmable power adaptors that can be programmed to adapt electrical power for one or more electronic devices. A programmable power adaptor optionally includes a user interface and/or other user input mechanism(s), which allows users to preset voltage requirements for one or more electronic devices. The pre-settings are stored in memory for future use. The programmable power adaptor is optionally configurable for multiple electronic devices, and/or multiple users. The programmable power adaptor optionally informs users of faults, proper device usage, and/or provides database access.