Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an energy harvesting (EH) device may receive a discontinuous reception (DRX) configuration that indicates a DRX on-duration for data communication and an EH configuration that indicates a reserved EH duration during which the first device harvests energy and does not transmit or receive data. The DRX on-duration and the reserved EH duration may be part of a periodic cycle. The EH device may perform data communication during the DRX on-duration. The EH device may switch one or more antennas of the first device to an EH mode and perform EH during the reserved EH duration. Numerous other aspects are described.