The device charging privilege is possible almost anywhere in Everest Base Camp Trekking. However, every device charging requires a certain amount of payment which goes higher with the elevation. This is because most of the destination has a dependency on the solar charging facility for power supply. However, it is always wise to carry some extra batteries or the fully charged power bank batteries since your batteries run out pretty quickly in the cold. Wi-Fi availability is almost everywhere in Everest Base Camp Trip. They use a service provider known as “Everest-Link”. You usually need to buy an Everest Link Card that has a time validity period but the same password can be used in different destinations if you have not run out of the balance. However, there have been too many grievances over Everest Link being expensive and not working as it is intended. Significantly, Everest Region has really good mobile receptions and you can always buy Local Sim Card and data as per your requirement in Kathmandu itself.