Do RFID Cards Need Batteries?
RFID cards, short for Radio-Frequency Identification cards, are widely used for access control, identification, and tracking purposes. Unlike traditional magnetic stripe cards, RFID cards do not require batteries to function. Instead, they rely on electromagnetic fields to power up and transmit data. Here's how RFID cards work without needing batteries: 1.Passive RFID Technology: Passive RFID technology is commonly used in RFID cards from RFID Cards Manufacturers in India , featuring an embedded RFID chip and antenna. When an RFID card enters the electromagnetic field of an RFID reader, the antenna receives energy from the reader's signal. · This energy activates the RFID chip, enabling it to transmit its unique identification information back to the reader. Unlike active RFID cards, which have their power source and can transmit signals over longer distances, passive RFID cards rely on the reader's signal for power and typically h...