Semi-Passive RFID Tags
Semi-passive tags (also called semi-active or battery-assisted passive (BAP) tags) are based on the same principle as passive tags but include battery that helps to extend the communication range, tag memory and in some cases include sensors. Semi-passive tags usually utilize the same Gen 2 protocol as passive tags and are interoperable with current passive Gen 2 readers.
For more information on semi-passive tags and how they work, visit How to select a correct RFID tag – Active vs. Passive.