A WEARABLE ELECTRONIC DEVICE CHARGING UNIT

The presently disclosed subject matter aims to provide a wearable electronic device charging unit configured to be fastened onto a wearable electronic device strap attached to a wearable electronic device case, the wearable electronic device charging unit comprising: a power source; and, at least one attaching element coupled to the power source configured to attach the power source onto the wearable electronic device strap; wherein the power source is configured to be in an electrical communication with a rechargeable battery located within the wearable electronic device case so as to recharge the rechargeable battery without interfering with the operation of one or more power-consuming components located on the wearable electronic device case.