For example, I regularly plug a Micro USB cable into an iPhone charger and charge with that. Cheap, non phone chargers however, may not be regulated, and that could damage your phone. In short: Any cable or charger from an old phone is fine to use if its Micro USB (same connector).
Untreated surface water in rivers, streams, lakes, and ponds is not safe to drink unless it is treated to remove bacteria, viruses, and parasites.
Although drinking water in Easter Island is completely safe and can be directly drank, it is recommended for people more susceptible to changes that they ingest bottled water throughout the first days of their stay because of the high mineral content of drinking water, which could cause stomach disturbance.