Systems and methods for hybrid energy harvesting for transaction cards

A transaction card, comprising:

• a data storage device;
• and
• a power module comprising:
• a power receiver configured to receive energy from a transaction card terminal during a transaction;
• and
• a power supply unit comprising:
• a first rechargeable power source configured to receive energy from the power receiver;
• a second rechargeable power source configured to receive energy from only the first rechargeable power source;
• and
• a power controller configured to:
• determine whether the second rechargeable power source requires recharging;
• control a flow of energy from the first rechargeable power source to the second rechargeable power source;
• and
• determine, in response to a request associated with the transaction, whether the transaction card has sufficient power to complete the transaction prior to conducting the transaction.

A method of managing power in a transaction card, the method comprising:

• receiving energy from a transaction card terminal during a transaction involving transfer of data between the transaction card and the transaction card terminal;
• storing at least a portion of the received charging energy into a first rechargeable power source;
• determining, by a power controller, that a second rechargeable power source requires recharging, the second rechargeable power source being configured to receive energy from only the first rechargeable power source, the power controller being configured to determine, in response to a request associated with the transaction, whether the transaction card has sufficient power to complete the transaction prior to conducting the transaction;
• charging the second rechargeable power source using at least a portion of the stored energy;
• and
• controlling, by a power controller, a flow of charging energy between the power receiver, the first rechargeable power source, and the second rechargeable power source.