Transaction device capable of managing and routing power from an external power source

A method, comprising:

• receiving, by a transaction device and from an external device, a first amount of power before or during performing a transaction;
• estimating, by the transaction device, before completing the transaction and based on receiving the first amount of power, a second amount of power required to perform one or more operations to be performed other than the transaction, wherein the second amount of power is estimated before initiating the transaction or while performing the transaction;
• and
• obtaining, from the external device and based on estimating the second amount of power, a third amount of power.

A non-transitory computer-readable medium storing a set of instructions, the set of instructions comprising:

• one or more instructions that, when executed by one or more processors of a transaction device, cause the transaction device to:
• receive, from an external device and in connection with performing a transaction, a first amount of power;
• estimate, before completing the transaction and based on receiving the first amount of power, a second amount of power required to perform one or more operations to be performed other than the transaction, wherein the second amount of power is estimated before initiating the transaction or while performing the transaction;
• and
• obtain, from the external device and based on estimating the second amount of power, a third amount of power.